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【简答题】
何谓渐开线齿轮传动的可分性?如令一对标准齿轮的中心距稍大于标准中心距,能不能传动?有什么不良影响?
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反馈参考答案：
举一反三
【单选题】下列选项中不属于电子测量的内容是( )
A.
电流的测量
B.
阻抗的品质因数的测量
C.
用水银温度计测量温度
D.
利用传感器将温度变为电量，通过测量该电量来测量温度
【单选题】缠腰火丹疱疹的特点是
A.
多发于皮肤黏膜交界处，常为一群
B.
水疱成群，累累如串珠，疱群间皮肤正常
C.
多发于唇、鼻、眉、颧等处，顶陷色黑无脓
D.
多发于皮肤薄嫩和皱褶处，皮疹可见隧道、红色小丘疹
E.
以上都不是
【单选题】My best friend said he would go shopping with me today. It's already nine o'clock, but he hasn't ______ yet. [ ]
A.
put up
B.
looked up
C.
made up
D.
shown up
【简答题】She mistook my oversight for a ______insult.
【简答题】Education from My Father My memories of my father are slim because he was so sick in the last years of his life. But there are 32 that I am often reminded of and which may have had some bearing on my ...
【单选题】In 1942，Columbus_______ on the of the Bahama islands, but he mistook it for an island off India.
A.
lands
B.
landed
C.
has landed
D.
had landed
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