高速机械高速转子用螺钉连接时，应注意附加防松装置对其平衡的影响。 ()
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京剧的中国最大的戏曲剧种，已有300年的历史。()
The pursuit of instant results causes people to______.
A. have more errors in their writings
B. become more impolite
C. use voice messages instead of emails
D. lose many of their abilities in life
【C2】
A. clear away
B. check up
C. deal with
D. look at
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