水压试验进水结束，上水阀完全关闭开始计时，5min内压力自行下降

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问题单项选择题

水压试验进水结束，上水阀完全关闭开始计时，5min内压力自行下降值不超过（）为合格。

A、0.01MPa

B、0.1MPa

C、0.05MPa

D、0.5MPa

答案

参考答案：C

句型转换

这些句式你掌握了吗？按要求改写下列句子。

1.She has to go home now. ( 改为否定句)

She ____ ____ to go home now.

2.They didn't talk any more in class. (改为同义句)

They talked ___ ___ in class.

3.I had to take a bus because it was too far. (就画线部分提问)

___ ____ you have to take a bus ?

4.David missed the early bus this morning. (改为同义句)

David ___ ___the early bus this morning.

5. The boy is very strong, He can carry the heavy basket.(合并为一个句子 )

The boy is ______ ______ to carry the heavy basket.

问答题

五、Windows XP的窗口（一）

要求：调节出“查看”菜单中浏览器栏的级联菜单