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问题 单项选择题

可以说()共同确定了工程承包合同的实际价格。

A.价格调整和合同单价(对于“单价合同”)

B.价格调整和合同总价

C.合同单价(对于“单价合同”)和合同总价

D.价格调整和合同单价(对于“单价合同”)及合同总价

答案

参考答案：D

填空题

根据短文内容及首字母提示，补全空格内单词，使短文完整、通顺。

   The Greenwood Boys are a group of (1)p             singers. At present, they are visiting all parts of the

country. They will (2)a             here tomorrow. They are coming by (3)t             and (4)m             of the

young people in the town will meet them at the station. Tomorrow evening they will sing at the Workers'

Club. The Greenwood Boys will (5)s             for five days. (6)D             this time, they will give five

(7)p            . As (8)u            , the police will have a difficult time. They will try to (9)k             order.

It is (10)a              the same on these occasions (场合).

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选择题

物质是由微粒构成的，下列物质所对应的构成微粒错误的是（　　）

A．二氧化碳分子

B．氯化钠离子

C．水银原子

D．铁分子
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