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问题 单项选择题

施工合同中约定按每月确定的工程量支付工程款，发包方没有按期付款，承包方欲请求法院保护其民事权利，该诉讼时效期间应从( )之日算起。

A．第一次付款期限届满
B．最后一次付款期限届满
C．每次付款期限届满
D．提交工程款支付申请

答案

参考答案：B

解析： P315倒数第3段。

选择题

下图，这四位同学说的可能是关于同一个化学反应，它是

[ ]

A. 氢气燃烧

B. 电解水

C. 在空气中点燃镁条

D. 一氧化碳在氧气中燃烧

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单项选择题

No one knows how man learned to make words. Perhaps he began by making sounds like those made by animals. Perhraps he grunted like a pig when he lifted something heavy. Perhaps he made sounds like those he heard all around him water splashing, bees humming, a stone falling to the ground. Somehow he learned to make words. As the centuries went by, he made more and more new words. This is what we mean by language.
People living in different countries made different kinds of words. Today there are about fifteen hundred different languages in the world. Each contains many thousands of words. A very large English dictionary for example, contains four or five hundred thousand words. But we do not need all these. Before you leave school, you will learn only a few thousand of them.

In order to make a speech, we need sounds and words.

A. Right.

B. Wrong.

C. Doesn’t say.
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