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问题 单项选择题

对平卧叠浇的预应力混凝土构件施加预应力的方法为( )。

A．(A) 自上至下逐层加大张拉力

B．(B) 各层张拉力不变

C．(C) 自上至下逐层减小张拉力

D．(D) 仅对面层构件超张拉

答案

参考答案：A

填空题

黄山毛峰分特级及（）级四个级别，其中特级黄山毛峰的采摘标准是一芽一叶初展。
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填空题

根据句意及汉语提示，写出下列单词。

1. There are more ________(比) thirty girl students in our class.

2. There are many ________(山) in Shandong Province.

3. The skirt is too ________(昂贵) in that shop. I have not enough money to buy it.

4. My parents ________(同意) to talk about my family rules with me this weekend.

5. Mr. Smith lost his job. The Smith family got into a difficult ________(情形).

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