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【判断题】
车削较长的轴，由于工件刚性不好，的工件会产生圆柱度误差。()A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】翻译以下说明书的第一页(封面)和第二页,要求按原文排版要求手写拍照上传 虎牌JKT-G说明书.pdf
【单选题】Professor Black often reminds us to ______ ourselves of every chance to improve our English.
A.
notify
B.
avail
C.
inform
D.
assure
【单选题】Determining where we are _________our surroundings remains an essential skill for our survival.
A.
in contrast to
B.
in defense of
C.
in face of
D.
in relation to
【单选题】LiYang, a famous English expert, will deliver a speech telling us a good way to have our oral English______in a short period.
A.
to improve
B.
improving
C.
improved D to be improved
【单选题】The condition where our wants are greater than our resources is called______.
A.
opportunity cost
B.
disutility
C.
economic loss
D.
scarcity
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