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【多选题】
划分一个转轮系的判断有如下选项,其中正确的选项为 ( )A.
轮系中凡绕转动轴线转动的齿轮都属行星轮，支撑行星轮转动轴的构件就属行星架。
B.
轮系中中心轮必与行星架轴线重合，且与行星架上的行星轮相啮合。
C.
轮系中至少有一个而且仅有一个行星架
D.
轮系中最多仅能有两个太阳轮
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反馈参考答案：
举一反三
【简答题】测孕妇坐骨结节间径<8Cm时,还应测量( )
【单选题】-If he doesn't want to do it, is _________ willing to do? -Mr. Li, I am willing to do it. [ ]
A.
everybody else
B.
anybody else
C.
else everybody
D.
else anybody
【单选题】I don't regret __________ the concert yesterday because I am more willing to celebrate my baby ‘s first birthday.
A.
to miss
B.
missing
C.
miss
【单选题】What does the statement mean?
A.
I am too happy to be helpful in any way.
B.
I am willing but unable to help you.
C.
I shall be very glad to offer my help.
D.
I promise to think about how to help you.
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