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【单选题】
推力轴承的作用是()A.
传递推力
B.
传递拉力
C.
对曲轴进行轴向定位
D.
A+B+C
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皮皮学刷刷变学霸
举一反三
【单选题】What does Michael agree to do?
A.
He agrees to go with Cathy.
B.
He agrees to join them.
C.
He agrees to call Cathy back.
D.
He agrees to work overseas with Cathy.
【简答题】What does he look forward to ?
【简答题】What does the man want to do?A. He wants to change American dollars into RMB. B. He wants to buy some goods in China. C. He wants to stay in China. D. He wants to open an account at a bank in China.
【简答题】土壤表面的农药因受日光照射而发生光化学降解转化,主要有( )、( )、( )和( )。
【简答题】What does the last sentence mean?
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