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【判断题】
在加工一般钢件时,精用乳化液,粗用切削油。( ) 答案:A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】使用微钣金工具对微小凹痕修复时，操作错误的是（ ）。
A.
修复时的力量要准确、有力
B.
修复好的部位放一些打磨膏抛光
C.
微钣金锤轻敲凹陷部位，动作要轻柔
D.
以上均不对
【简答题】A) Many social scientists have studied the causes of success. One American study claims that your social network is the key to success. Apparently, every extra friend that you have at school adds two...
【单选题】使用微钣金工具对微小凹痕修复时，哪个操作是错误的
A.
修复时的力量要准确、有力
B.
在修复好的部位上放一些研磨膏抛光
C.
用钣金锤轻敲凹陷部位，动作要轻柔
D.
使用钣金锤时要快速轻敲
【简答题】How genes could cause a potential problem for conservationists.
【单选题】What is the under lying cause of this problem？（）
A.
A remote physical layer problem exists.
B.
The host NIC is not functioning.
C.
TCP/IP has not been correctly installed on the host.
D.
A local physical layer problem exists.
【单选题】I had been puzzled over the problem for over an hour without any result, ____ all at once the solution flashed across my mind.
A.
while
B.
when
C.
then
D.
as
【简答题】写出arbeiten的动词变位 ich _____, er _____, wir ____, du _____, ihr _____
【单选题】Which of the following is NOT mentioned as a cause of the problem discussed in the passage?
A.
Natural barriers to sea Water have been destroyed.
B.
The water table has gone down after droughts.
C.
Sea level has been continuously rising.
D.
Evaporation of water leaves salt behind.
相关题目：
【单选题】使用微钣金工具对微小凹痕修复时，哪个操作是错误的
A.
修复时的力量要准确、有力
B.
在修复好的部位上放一些研磨膏抛光
C.
用钣金锤轻敲凹陷部位，动作要轻柔
D.
使用钣金锤时要快速轻敲
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