抽油机（），不会造成整机振动故障。
A、抽油泵严重漏失
B、地基建筑不牢
C、底座与基础悬空
D、减速器齿轮打齿
参考答案：A
连词成句
1. language, what, Jim, does, speak,
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2. doing, he, homework, is,
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3. pandas, kind, are, of, cute,
4. want, to, I, be, actor, an,
5. a, have, place, good, Beijing, is, to, fun,
什么会使变压器发出异常音响？
