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【简答题】
某旋转机构采用6级精度中系列向心球轴承,轴承内径d=50mm,外径D=110mm,轴承承受中等转速,轻载荷、轴旋转,试确定轴承与轴和外壳配合的公差代号、极限偏差、形位公差和表面粗糙度数值,并分别标注在装配图和零件图上
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【简答题】Informal conversation is an important part of any business relationship．Before you start a discussion，however，make sure you understand which topics are suitable and which are considered taboo（禁忌）in a ...
【单选题】下述关于喉癌的描述错误的一项是( )。
A.
喉癌病理类型多为鳞癌
B.
女性声门上区癌多于男性
C.
声门癌颈部淋巴结转移多见且易早期出现
D.
90%以上的喉癌可通过间接喉镜发现异常
E.
喉癌最常见的远处转移为肺
【单选题】Fang Xingdong has coined the word boke and then established China's first online discussion forum about blogging technology and culture in 2002.
A.
Y
B.
N
C.
NG
【简答题】Three Yale University professors agreed in a panel discussion tonight that the automobile was what one of them called 'Public Health Enemy No. 1' in this country. Besides polluting the air and congest...
【单选题】单项选择 1. The bell ______ the end of the period rang, ______ our heated discussio n.
A.
indicating; interrupting
B.
indicated; interrupting
C.
indicating; interrupted
D.
indicated; interrupted
【简答题】A. All of this is said. B. IbelievethatthekeytorealizingthepotentialoftheInternetisinachievingbalanceinourlives. A. There had been no rain. B. The ground was dry. A. When I walked in, Grandpa was sitt...
【简答题】_________________________(我们应该首先区分这两个军事术语) for the purpose of our discussion.
【简答题】请阅读下面短文,并按照要求用英语写一篇 150 词左右的文章。 When we read newspapers, we often come across such English words as “” and “PK.” When we watch TV, we frequently hear words like “NBA” or “PM2.5.” When we speak, we...
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