题目内容

In the third paragraph, bricks are mentioned to indicate how ______.

A. science is more than a collection of facts
B. scientific experiments have led to improved technology
C. building a house is like performing experiments
D. mathematicians approach science

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政府采购合同履行中，采购人需追加合同标的相同的货物、工程或者服务的，在不改变原合同其他条款的前捉下，可以与供应商协商签订补充合同，追加与合同标的相同的货物、工程或服务，所有补充合同的累积增加的、采购金额不得超过原合同采购金额的()。

A. 10％
B. 15％
C. 20％
D. 25％.

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The following factors tend to promote social change except ______.

A. different kinds of people
B. different points of view
C. different interests
D. different conditions

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The major problems with America's railroad system in the mid 19th century lay in ______.

A. limited railroad lines
B. lack of a transcontinental railroad
C. lack of financial support of development
D. poor quality rails and unreliable stopping systems

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Woman: Oh, this chicken soup is spoiled. Man: Maybe we ought to tell the waiter about it.

A. He wants to pay the bill.
B. He wants to complain about the soup to the waiter.
C. He thinks the chicken soup is very delicious.
D. He shouldn't eat any chicken soup.

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In the third paragraph, bricks are mentioned to indicate how ______.

A. science is more than a collection of facts B. scientific experiments have led to improved technology C. building a house is like performing experiments D. mathematicians approach science

The following factors tend to promote social change except ______.

The major problems with America's railroad system in the mid 19th century lay in ______.

Woman: Oh, this chicken soup is spoiled. Man: Maybe we ought to tell the waiter about it.

A. science is more than a collection of facts
B. scientific experiments have led to improved technology
C. building a house is like performing experiments
D. mathematicians approach science