问题
单项选择题
球罐的检验中，水压试验压力应为设计压力的（）倍。
A．1.5
B．1.0
C．1.25
D．1.2
答案
参考答案：C
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球罐的检验中，水压试验压力应为设计压力的（）倍。
A．1.5
B．1.0
C．1.25
D．1.2
参考答案：C
| 用下列给单词的适当形式填空，每个单词只能用一次。 | |
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| Ann had a _____1____ party. Her friends all come to her party. Lin Tan gave her a present (礼物), and the _____2_____ gave her a box _____3_____ a present in it.Ann ______4____ to open their presents, but she was very ______5____ and there was no _____6_____. What present did Polly give Ann? It was a red feather (羽毛). It looked very _____7_____ , and Ann _____8_____ it very much and wanted to _____9_____ it in her hat. What a good time they _____10_____ at the party! |