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提问人:网友huicer 发布时间:2022-01-07
[单选题]

Vitamins are chemical.

A.inorganic

B.organic

C.coordinate

D.--

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更多“Vitamins are chemical.”相关的问题
第1题
Smooth muscle can be found in the small intestines.
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第2题
Questions 36 to 40 are based on the following passage:

The oldest and simplest method, then of describing differences in personality was to classify people according to types, and such a system is called a Typology. A famous example of this method was set forth in Greece about the year 400 BC.A physician named Hippocrates theorized that there were four fluids, or humors, in the body. Corresponding to each humor, he believed, there existed a definite type of personality.

The four humors were blood, yellow bile, black bile, and phlegm. A person in whom all four humors were in perfect balance had a harmonious personality. If a person had too much blood, he was called sanguine(血红色), or cheerful and optimistic. Someone with too much yellow bile was choleric, or irritable and easily angered. Too much black bile made a person melancholy, or depressed and pessimistic. An oversupply of phlegm caused a human being to be phlegmatic, or slow and unfeeling. Scientists have long since discarded Hippocrates’ fluid theory. But the names of the humors, corresponding to these temperaments, have survived and are still useful, to some extent, in describing personality.

Other features of people, such as their faces and physics, have also been used to classify personality. Today, however, personality theories and classifications may also include factors such as heredity(遗传特征), the environment, intelligence , and emotional needs. Psychology, biology, and sociology are involved in these theories. Because of the complexity of human personality, present day theories are often very different from one another. Psychologists vary in their ideas about what is most important in determining personality.

36.According to Hippocrates’ fluid theory, a man with too much phlegm will be ____.

A.optimistic    B.easily angered C.unexcitable    D.pessimistic

37.The main idea of this passage is about ____.

A.the complicated factors in determining one’s personality

B.Hippocrates’ fluid theory and its development

C.the past and today of personality classifications and theories

D.different personalities and their details

38.At present, psychologists ____.

A.have common opinion about personality theories and classifications

B.use biology, archaeology and sociology to study personality theories

C.have abandoned Hippocrates’ fluid theory entirely

D.all agree that human beings are characterized with complex personalities

39.The third paragraph mainly talks about ____.

A.Hippocrates’ fluid theory

B.scientists’ points of view on Hippocrutes’ fluid theory

C.Hippocrates’ fluid theory and its fate

D.defects in Hippocrates’ fluid theory

40.According to this passage the factors which are still NOT used to clas sify personality are ____.

A.one’s born features and needs of love and success

B.one’s height and weight

C.one’s hobbies and ideals

D.the environment and intelligence

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第3题
阅读理解。????Humans are naturally drawn to other l...
阅读理解。
Humans are naturally drawn to other life forms and the worlds outside of our own. We take delight in the

existence of creatures and even whole societies beyond our everyday lives.

This sense of wonder is universal. Look at the efforts that scientists have made to find out whether life of

some kind exists on Mars, and the popularity of fantasy (幻想) literature or movies like The Lord of the Rings.

This sense of wonder draws us to each other, to the world around us, and to the world of make-believe. But

have we gone so far in creating worlds of fantasy that we are missing the pleasure of other worlds that already

exist all around us?

Human beings, as biologists have suggested, possess an inborn desire to connect with and understand other

life forms. However, people, especially in big cities, often lead rather isolated lives. In a study of British

schoolchildren, it was found that children by age eight were much more familiar with characters from television

shows and video games than with common wildlife.Without modern technology, a small pond could be an

amazing world filled with strange and beautiful plants, insects, birds, and animals.When we lack meaningful

interaction (交互) with the world around us, and sometimes even with our families and friends, we seek to

understand and communicate with things that exist only in our imaginations or on a computer screen.

The world of make-believe is not necessarily bad. But when the world of fantasy becomes the only outlet

(出路) for our sense of wonder, then we are really missing something. We are missing a connection with the

living world. Other wonderful worlds exist all around us. But even more interesting is that if we look closely

enough, we can see that these worlds, in a broad sense, are really part of our own.

1. The popularity of The Lord of the Rings proves _____.

[    ]

A. the close connection between man and the fantasy world

B. the wonderful achievements of fantasy literature

C. the fine taste of moviegoers around the world

D. the general existence of the sense of curiosity

2. What can we infer from the underlined sentence in Paragraph 3?

[    ]

A. People are far less familiar with the world of fantasy.

B. The world around us could serve as a source of wonder.

C. The world of fantasy can be mirrored by a small and lively pond.

D. Modern technology prevents us from developing our sense of wonder.

3. If our sense of wonder relies totally on the world of make-believe, we will _____.

[    ]

A. fail to appreciate the joy in our lives

B. be confused by the world of make-believe

C. miss the chance to recognize the fantasy world

D. be trapped by other worlds existing all around us

4. What is the main purpose of the passage?

[    ]

A. To show us the hidden beauty in our world.

B. To warn us not to get lost in the fantasy world.

C. To argue against the misuse of the sense of wonder.

D. To discuss the influence of the world of make-believe.

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第4题
Proanthocyanidins are very poorly absorbed in small intestine.
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第5题
The input is typically 10 pA, an amount small enough to be ignored in many cases.
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第6题
There are amino acid that are the building block of proteins.

A、20

B、50

C、200

D、--

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