问题
单项选择题
压实机械的分类中，适用于大型建筑和筑路工程中的是（）压实机械。
A.静力式
B.轮胎式
C.冲击式
D.振动式
答案
参考答案：A
解析：静力式压实机械对黏土等压实效果较好，尤其对大面积压实的效率也较高，故适用于大型建筑和筑路工程中。
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压实机械的分类中，适用于大型建筑和筑路工程中的是（）压实机械。
A.静力式
B.轮胎式
C.冲击式
D.振动式
参考答案：A
解析：静力式压实机械对黏土等压实效果较好，尤其对大面积压实的效率也较高，故适用于大型建筑和筑路工程中。
| 用方框中所给的词的适当形式填空，使短文正确、通顺。每词限用一次。 | |
you have to practice all the time. Listening to the 3__________, watching television, and attending movies are good 4__________ to improve your listening skill. You can develop your speaking skill by 5_________ to native speakers of English whenever possible and by speaking aloud to 6__________ when you are alone. Reading and writing also require a lot of 7__________. You can improve your reading skills by reading English language 8__________ and magazines. Writing to 9__________ in English and keeping a diary are good ways to practice writing. Hope you have a good time 10___________ your stay here for the course, thank you. |