题目内容
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The(16)describes, in detail, the project's deliverables and the work required to create those deliverables.
A．project scope statement
B．project requirement
C．project charter
D．product specification
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| 阅读理解。 |
| The modern age is an age of electricity. People are so used to electric lights, radio, televisions, and telephones that it is hard to imagine what life would be like without them. When there is a power failure, people grope about in flickering candlelight, cars hesitate in the streets because there are no traffic lights to guide them, and food spoils in silent refrigerators. Yet, people began to understand how electricity works only a little more than two centuries ago. Nature has apparently been experimenting in this field for million of years. Scientists are discovering more and more that the living world may hold many interesting secrets of electricity that could benefit humanity. All living cells send out tiny pulses of electricity. As the heart beats, it sends out pulses of record; they form an electrocardiogram, which a doctor can study to determine how well the heart is working. The brain, too, sends our brain waves of electricity, which can be recorded in an electroencephalogram. The electric currents generated by most living cells are extremely small,often so small that sensitive instruments are needed to record them. But in some animals, certain muscle cells have become so specialized as electrical generators that they do not work as muscle cells at all. When large numbers of these cells are linked together, the effects can be astonishing. The electric eel is an amazing storage battery. It can send a jolt of as much as eight hundred volts of electricity through the water in which it lives. (An electric house current is only one hundred and twenty volts, but two hundred and twenty volts in China.) As many as four-fifths of all the cells in the electric eel's body are specialized for generating electricity, and the strength of the shock it can deliver corresponds roughly to length of its body. |
| 1. Electricity was invented ______. |
[ ] |
| A. when man had no candles B. about 200 years ago C. to be operating computers D. by Thomse Edison |
| 2. The following things can send out pulses of electricity except ______. |
[ ] |
| A. electric eels and human hearts B. Electrical generators and animal muscle C. Stones and dry wood D. human brain and living cells |
| 3. The electric current send out by an eel can be ______. |
[ ] |
| A. as much as 800 volts B. about one hundred and twenty volts C. as high as the house current in China D. stored in the water where it lives |
| 4. From this shot passage we can infer ______. |
[ ] |
| A. the shorter an eel is, the stronger electricity it produces B. we can always feel the electricity produced by living cells C. human beings get their knowledge about electricity from nature D. people learn about electricity from eels |
A、third
B、three
C、the three
D、the third
Everyone knows that the favorite food in the United States is the hamburger. It seems impossible, but people eat 34 billion hamburgers a year. This is enough to make a line of hamburgers around the world four times.
The favorite place to buy hamburgers is a fast-food restaurant. In these restaurants, people order their food, wait just a few minutes, and carry it to their tables themselves. They can eat it in the restaurant or take the food out and eat it at home, at work, or in a park. At some restaurants people can drive up beside a window. They order the food, and a worker hands it to them through the window. Then they eat in their cars.
Hamburgers are not the only kind of food that fast-food restaurants serve. Some serve fish, chicken, beef sandwiches, or Mexican food. They also serve fries, shakes (a drink made from milk and ice cream) , soft drinks and coffee.
Fast-food restaurants are very popular because the service is fast and the food is inexpensive. For many people, this is more important than quality of the food. These restaurants are also popular because the food is always the same. People have known that if they eat at a company' s restaurant in the north or south of the city, the food will be the same.
In a fast-food restaurant, people______.
A．stand up to eat
B．are served at table
C．eat in a hurry
D．serve themselves
The fast-food is convenient owing to the following factors except______.
A．it doesn't take you much time to have a meal
B．you can get a lot of salt and fat in your fast-food
C．you can take your order without leaving your car
D．you can take the food to anywhere you like
Fast-food restaurants are popular because______.
A．people are free to order their food
B．the quality of the food is good
C．it is cheaper and faster to have meals there
D．people can find fast-food restaurants everywhere
Which of the following sentences is not correct?
A．The service is fast and the food is cheap in fast-food restaurant.
B．Everyone likes eating fast food.
C．People can find the same food in all the restaurants.
D．People can take fast food out.
What" s the main idea of the passage?
A．Americans eat enough hamburgers to make a line around the world four times.
B．Fast-food restaurants are popular in the United States.
C．Some people can eat fast food in parks.
D．Mothers who work outside home often have meals in fast-food restaurants.
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