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【单选题】
需要各专业负责人会签的图,还应画出( )。A.
会签栏
B.
设计单位名称
C.
图号
D.
图标
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皮皮学刷刷变学霸
举一反三
【单选题】When Pete saw Jean Grace, he ______.
A.
was very enthusiastic, hoping for some business to be done
B.
was cold but he still served the young customer
C.
was cold, unwilling to serve the young customer
D.
was very warm to the young customer though he did not want to sell anything to her
【单选题】What was Pete's attitude when he mw Jean Grace at first?
A.
He was friendly.
B.
He was indifferent.
C.
He was warm-hearted.
D.
He was sympathetic.
【简答题】什么是爬行现象,防止爬行现象的出现,可采取哪些措施。
【简答题】什么是爬行现象？机床运动部件爬行对机床加工性能的影响包括哪些方面？
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