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提问人:网友ziteng67 发布时间:2022-01-07
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Instead of just looking at overall accuracy, we calculate _____ metrics. A. Revising B. Precision and Recall C. Forecasting D. Prediction

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更多“Instead of just looking at overall accuracy, we calculate _____ metrics. A. Revising B. Precision an…”相关的问题
第1题
听力原文:M: Hey, honey, why do you look so happy?W: Great news. We just won $400 in the lo

听力原文:M: Hey, honey, why do you look so happy?

W: Great news. We just won $400 in the lottery.

M: Wonderful! How do we spend the money?

W: Well, I'm just thinking about it. Can we buy a new microwave stove?

M: With $400, we can afford the most expensive one.

W: Sure, but on second thought, don't you think our washing machine is out of style?

M: Well, that's still affordable. Hey, how about a camera? Look, we don't have a camera; a camera will give us a lot of pleasure. Why should we spend all our money on family appliance instead of some luxuries?

W: Well, I don't think it's a good idea.

M: Ok, let's think carefully about it.

W: Oh, How about something more exciting and attractive.

M: What is it?

W: Why not buy some jewelry? I need something that makes me more elegant and beautiful.

M: Well, in my opinion, you are pretty in your plain way.

W: Really, thank you, but I still insist on having a gold necklace.

(20)

A.Salesman and Customer.

B.The manager and the secretary.

C.Good friends.

D.Husband and wife.

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第2题
听力原文:How we look and how we appear to others probably worry us more when we are in our

听力原文: How we look and how we appear to others probably worry us more when we are in our teens or early twenties than at any other time in our life. Few of us are content to accept ourselves as we are, and few are brave enough to ignore the trends of fashion.

Most fashion magazines or TV advertisements try to persuade us that we should dress in a certain way or behave in a certain manner. If we do, they tell us, we will be able to meet new people with confidence and deal with every situation confidently and without embarrassment. Changing fashion, of course, does not apply just to dress. The advertisers show us the latest fashionable styles and we are constantly under pressure to follow the fashion in case our friends think we are odd or dull. What causes fashions to change? Sometimes convenience or practical necessity or just the fancy of an influential persona can establish a fashion.

Today, society is much freer and easier than it used to be. It is no longer necessary to dress like everyone else. Within reason, you can dress as you like or do your hair the way you like instead of the way you should because it is the fashion. At the same time, appearance is still important in certain circumstances and then we must choose our clothes carefully. However, you need never feel depressed if you don't look like the latest fashion photo. Look around you and you'll see that no one else does either!

Which of the following statements is TRUE according to the passage?

A.People are concerned about appearance in old age.

B.People are reluctant to follow the trends in fashion.

C.People are far from neglecting what is in fashion.

D.People tend to ignore appearance in informal situations.

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第3题
Directions: Put the following sentences in the pro...

Directions: Put the following sentences in the proper order so that they make a complete paragraph. 1. Maybe you interviewed for a job and didn’t get it, yet another one comes through that pays more and offers room for growth. 2. Some believe that everything happens for a reason, and failure is no exception. 3. Failure is never the end of the road, but only the beginning of something potentially better. 4. Perhaps someone you’ve been dating suddenly breaks things off, and you meet someone ten times more wonderful. 5. There’s always something to learn, ways to grow, different viewpoints to explore, and new opportunities waiting just around the corner. 6. Don’t view failure as bad luck; instead, look at each attempt to reach your goals as a triumph. 请把你的排序方式写在横线上!数字之间用一个空格分开。 ____________________________________

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第4题
No matter how formal or informal the work environment, the way you present yourself has an
impact.

This is especially true in fast impressions. According to research from Princeton University, people assess your competence, trustworthiness, and likeability in just a tenth of a second, solely based on the way you look. The difference between today’s workplace and the “dress for success” era is that the range of options is so much broader. Norms have evolved and fragmented. In some settings, red sneakers or dress T-shirts can convey status; in others not so much. Plus, whatever image we present is magnified by social-media services like LinkedIn. Chances are, your headshots are seen much more often now than a decade or two ago. Millennials, it seems , face the paradox of being the least formal generation yet the most conscious of style. and personal branding. It can be confusing. So how do we navigate this? How do we know when to invest in an upgrade? And what’s the best way to pull off one that enhances our goals? Here are some tips:

41_________________ As an executive coach, I’ve seen image upgrades be particularly helpful during transitions-when looking for a new job, stepping into a new or more public role, or changing work environments. If you’re in a period of change or just feeling stuck and in a rut, now may be a good time. If you’re not sure, ask for honest feedback from trusted friends, colleagues and professionals. Look for cues about how others perceive you. Maybe there’s no need for an upgrade and that’s OK.

42.__________________ Get clear on what impact you’re hoping to have. Are you looking to refresh your image or pivot it? For one person, the goal may be to be taken more seriously and enhance their professional image. For another, it may be to be perceived as more approachable, or more modern and stylish. For someone moving from finance to advertising, maybe they want to look more “SoHo.”(It’s OK to use characterizations like that.)

43.____________________ Look at your work environment like an anthropologist. What are the norms of your environment? What conveys status? Who are your most important audiences? How do the people you respect and look up to present themselves? The better you understand te cultural context, the more control you can have over your impact.

44._____________________ Enlist the support of professionals and share with them your goals and context. Hire a personal stylist, or use the free styling service of a store like. Crew. Try a hair stylist instead of a barber. Work with a professional photographer instead of your spouse or friend. It’s not as expensive as you might think.

45_____________________ The point of a style. upgrade isn’t to become more vain or to spend more time excessing over what to wear. Instead, use it as an opportunity to reduce decision fatigue. Pick a standard work uniform. or a few go-to options. Buy all your clothes …. once with a stylist instead of shopping alone, one article of clothing at a time.

A、Create a new image of yourself

B、Decide if the time is right

C、Have confidence in yourself

D、Understand the context

[E] Work with professionals

[F] Know your goals

[G] Make it efficient

41__________________

43

45

42

44

请帮忙给出每个问题的正确答案和分析,谢谢!

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第5题
听力原文:There student thieves look out. Students can easily get many research papers off

听力原文: There student thieves look out. Students can easily get many research papers off the Internet. A new Website could help teachers catch copiers.

Some students research and write their term papers. Others, however, just copy them off the Internet and turn them in as their work.

Two graduate students at the University of California at Berkeley have written a program to catch the students who copy. It compares a student's paper with every other term paper on the Web.

A hundred million Web pages on the Internet are searched. The top 20 search engines are used for the search. This service can be found at www. Plagiarism.com. They also have a local database of term papers. Teachers who sign up can send their students' 'papers to the Website. Within 24 hours they know if the student did the work. Every sentence that was a word-for-word match with another sentence either found on the Internet or within our database is coded.

A U. C. Berkeley professor told his class he would use the program. Still some students copied papers. All 300 papers went through the program. In 45 papers or 15 percent of students had cut and pasted large amounts of material from different World Wide Websites.

Students that say they didn't copy can defend themselves. They can show the instructor where they got their material. Students at universities try hard to get good grades. Some students welcome the Internet research watchdog because they say it is fair to all. They think copying is wrong.

Instead of researching and writing their papers, some students ______.

A.ask other students to write their papers

B.draw pictures instead

C.copy from reference books

D.copy papers or large parts of papers from the Internet

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第6题
听力原文:W: Could you help me out with this presentation?M: Sure. You're using your laptop

听力原文:W: Could you help me out with this presentation?

M: Sure. You're using your laptop, right?

W: Yes. Take a quick look and let me know what you think.

M: There's a lot of information on these slides. If there's too much, the audience will stop listening to you and become focused on reading them.

W: But there's so much that I need to say.

M: I'd suggest cutting down the number of words on each slide or increasing the number of slides. Or both!

W: Last time I gave a presentation to this group of people, a few said there wasn't enough information. I guess I'll have to increase the number of slides.

M: Don't have too many or you'll have to race through them to get the presentation finished in time. Use buzzwords instead of whole sentences.

W: Buzzwords?

M: You know. Don't say "It makes your company more efficient". Instead just say "In creases efficiency".

W: What do you think of the background?

M: Not bad, but a little dark for my taste. In my experience, younger, more junior people prefer brighter colours whereas higher-ups prefer... Well, dark blue, for example.

(20)

A.They give too much information.

B.They distract from the speaker.

C.People get tired of them.

D.They don't give enough information.

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第7题
听力原文:M: Honey,the basketball game is about to start.And could you bring some chips and
a bowl of ice cream?And…uh…a slice of pizza from the fridge.

W: Anything else?

M: No,that's all for now.Hey,honey,you know,they're organizing a company basketball team, and I'm thinking about joining. What do you think of it?

W: Humph.

M: "Humph"! What do you mean "Humph"? I was the star player in high school.

W: Yeah, twenty-five years ago. Look, I just don't want you to have a heart attack running up and down the court.

M: So, what are you suggesting? Should I just abandon the idea? I'm not that out of shape.

W: Well, you ought to at least have a physical check before you begin. I mean, it has been at least five years since you played at all.

M: Well, okay, I agree with you.

W: And you need to watch your diet and cut back on the fatty foods, like ice cream. And you should try eating more fresh fruits and vegetables.

M: Yeah, you're probably right. I should do something to improve my diet.

W: And you should take up a little weight training to strengthen your muscles or perhaps try cycling. Oh, and you need to go to bed early instead of watching TV half the night.

M: Hey, you're starting to sound like my personal fitness instructor!

W: No, I just love you, and I want you to be around for a long, long time.

(20)

A.Play basketball with his colleagues.

B.Go to hospital and have a physical check.

C.Lose weight and strengthen the muscles.

D.Compete in a cycling race with colleagues.

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第8题
Passage 3Electronic cigarettes are handheld nicotine-delivery devices that, despite, a dev

Passage 3

Electronic cigarettes are handheld nicotine-delivery devices that, despite, a devoted following, are currently swirling in controversy. New York is pushing to become the first state to ban the devices, which so far remain _1_ and mostly unstudied. With cute colors, fruity flavors clever designs and other options, e-cigarettes may hold too much _2_ for young people, critics warn, offering an easy gateway to nicotine addiction. But those criticisms clash with _3_ strong arguments for the value of e-cigarettes. The devices, which are tobacco-free, may be a safer _4_ to cigarettes, say advocates, who point to thousands of smoker who say they have used e-cigarettes to help them quit Electronic cigarettes _5_ use a rechargeable battery-operated heating element to vaporize the nicotine in a replaceable pipe. Nicotine is the substance in tobacco that people can become addicted to. Some cigarettes are made to look like real cigarettes, cigars or pipes. Others look like pens or USB memory devices. No tobacco is _6_ in e-cigarettes and there is no smoke either. Instead, as users breathe in, they take in nicotine-filled vapor. By isolating nicotine, e-cigarettes should carry far fewer chemical risks than _7_ cigarettes. Tobacco contains about 5,000 _8_ chemicals with as many as 100,000 more that haven’t yet been known. E-cigarettes _9_ many of those ingredients. Researchers also found evidence that e-cigarettes reduce desires among smokers, not just for nicotine but also for the need to hold something in their hands and put something in their mouths. As a cigarette-quitting strategy, it’s not that the devices are good for anyone, but they are just better than what they’re meant to _10_.

A) alternative

B) engaged

C) regular

D) opaque

E)involved

F)typically

G)solely

H) appeal

I) momentum

J) equally

K) replace

L) unregulated

M) eliminate

N) detect

O)identified

第1空答案是:

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第9题
听力原文:It was not yet eleven o'clock when a boat crossed the river with a single passeng

听力原文: It was not yet eleven o'clock when a boat crossed the river with a single passenger, who had promised to pay an extra fare. While the youth stood on the landing place searching in his pockets for money, the boatman got close to him and, with the help of the moonlight, took a careful look at the stranger—a young man of just 18 years, obviously country bred, and now, as it seemed, on his first visit to town.

He was wearing a rough grey coat, which was in good shape. The clothes under his coat were veil made of leather, and fitted tightly to a pair of fat legs; his blue cotton stockings must have been the work of his mother or sister, and on his head was a 3-cornered hat. In his left hand was a walking stick, which hung on his strong shoulders, with 2 leather bags on both ends of the stick. The youth, whose name was Robin, paid the boatman, and then walked forward into the town with light steps, as if he had not already traveled more than 30 miles that day. As he walked along, he looked about his surroundings as eagerly as if he were entering London or Madrid, instead of the little town.

(33)

A.Because he knew he would be paid more than what was usual.

B.Because Robin was just over 20.

C.Because he felt sorry for the handsome young man.

D.Because the boat could only carry one passenger.

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