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【单选题】
如果某菜单的右边有一个黑色三角形标记,表示()。
A.
单击这个菜单选项出现一个对话框
B.
选项还有子菜单
C.
单击这个选项可以弹出一个快捷菜单
D.
这个菜单目前还不能选取
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【判断题】位置控制和接触器控制正反转电路最大的差别是在两个接触器线圈电路中分别串接了一个限位开关常闭触点
A.
正确
B.
错误
【简答题】1 What seems to be the problem A. Use your imagination to speculate what the people are saying. B. You'll hear eight short phone calls. Match the NUMBERS of each call to one of these sentences. Put a ...
【单选题】气动阀的气动执行机构一般有两种形式,分别是()。
A.
薄膜式和电磁式
B.
薄膜式和活塞式
C.
活塞式和电磁式
D.
电磁式和膜片式
【单选题】The customer was______when told he might not have worn the headphones properly.
A.
annoyed
B.
surprised
C.
indifferent
D.
worried
【单选题】Directions: Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that...
A.
help travelers pass time
B.
attract lots of travelers to the UK
C.
allow travelers to make flexible plans
D.
cause travelers to pay more for accommodation
【单选题】Ms. Andrew had difficulty understanding _______the customer was trying to communicate to him.
A.
how
B.
what
C.
whether
D.
why
【单选题】Because the customer was ill, he felt sometimes hot and sometimes cold.
A.
Right.
B.
Wrong.
C.
Doesn't say.
【单选题】cad的模板文件的扩展名为( )
A.
dwg
B.
dwt
C.
dll
D.
ac$
【单选题】CAD的模板文件的扩展名为( )
A.
DWG
B.
DWT
C.
DLL
D.
ACS
【判断题】位置控制和接触器正反转控制电路最大的差别是在两个接触器线圈电路中分别串接了一个限位开关常闭触点
A.
正确
B.
错误
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