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【判断题】
( )电容在直流通路中可视为短路,在交流通路中可视为开路。
A.
正确
B.
错误
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【简答题】阅读理解。 Have you ever spoken or acted before the public? Have you got stage fright c怯场)? Many people have such an experience but they feel differently about it.  Some are just a little nervous,  others ...
【判断题】在总账系统中,取消出纳凭证的签字既可有出纳员自己进行,也可以由会计主管进行
A.
正确
B.
错误
【判断题】主键约束中的字段不能接受空值, UNIQUE 约束的字段也不能接受空值。
A.
正确
B.
错误
【单选题】If you have herd mentality, it means that you_____________
A.
do something out of your free will
B.
do something because your peers do it
C.
are forced to do something you don't like
D.
hate to do what you have to do
【单选题】当对被试品进行直流耐压试验时,交直流两用试验变压器的短路杆应()。
A.
短接
B.
拧松
C.
断开
D.
抽出
【单选题】接高沉井时第一节沉井顶面下沉至距地面还剩( ) 时,应停止挖土。
A.
0.3 ~ 0.5m
B.
0.5 ~ 1m
C.
1 ~ 2m
D.
2 ~ 3m
【单选题】词义替换。 —What do you often do in your spare time ? —Play basketball.
A.
have nothing to do
B.
in your free time
C.
in your own time
D.
have no time
【单选题】The company planned to introduce new technology ______ the expense of the existing workers.
A.
in
B.
at
C.
with
D.
on
【单选题】---Remember the first time we____ , Ed ? ---Of course, I do. You _____ a song on the stage.
A.
have met;sang
B.
met;sang
C.
met;were singing
D.
have met;have sung
【多选题】大气中的NO和NO2常用的测定方法有()
A.
溶液电导法
B.
盐酸萘乙二胺分光光度法
C.
紫外荧光法
D.
化学发光法
E.
恒电流库仑滴定法
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