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【单选题】
下列关于皮带传动装置防护说法错误的是( )。A.
皮带传动的传动比精确度较齿轮咬合的传动比差
B.
过载时，皮带打滑，起到了过载保护作用
C.
皮带传动机构的防护方法可以采用将皮带全部遮盖起来的方法，或采用防护栏防护
D.
在皮带传动机构中，皮带离开皮带轮的部位最危险
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】分推膻中的具体操作,是下列哪一项( )
A.
中指揉膻中
B.
两拇指至穴中向两旁分推至乳头，又称开胸
C.
用食，中，无名指沿胸骨上下摩擦
D.
用食，中指至胸骨切迹向下推至剑突
【单选题】听力原文：M: I think the hostess really went out of her way to make the party a success. W: Yes, the food and drinks were great, but if only we had known a few of the other guests. Q: What did the two spea...
A.
They enjoyed the party better than the other guests.
B.
They knew none of the other guests at the party.
C.
They didn't think much of the f6od and drinks
D.
They went a long way to attend the party.
【单选题】I'm ____ that getting into university is not the only way to success.
A.
ware
B.
aware
C.
wear
D.
await
【简答题】某市一商务型酒店总共有客房300间,2018年5月份实际出租200间,计算5月份该酒店客房出租率?
【单选题】—What a mistake! —Yes. I ______ he do it in another way, but without success.
A.
was suggesting
B.
have suggested
C.
would suggest
D.
had suggested
【单选题】听力原文：M: I think the hostess really went out of her way to make the party a success. W: Yes. The food and drinks were great. But if only we had known a few of the other guests. Q: What did the two spea...
A.
They enjoyed the party better than the other guests,
B.
They knew none of the other guests at the party.
C.
They didn't think much of the food and drinks.
D.
They went a long way to attend the party.
【单选题】—What a mistake! —Yes. I ________ his doing it another way,but with out success. [ ]
A.
was suggesting
B.
will suggest
C.
would suggest
D.
had suggested
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