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【单选题】
工作在电压比较器中的和工作在运算电路中的的主要区别是,前者的通常工作在( )。
A.
深度负反馈状态
B.
开环或正反馈状态
C.
放大状态
D.
线性工作状态
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举一反三
【单选题】She pretended to be calm but _______she was more than nervous at the time she was being questioned.
A.
in actual
B.
actually
C.
as matter of fact
D.
in a fact
查看完整题目与答案
【单选题】She pretended ________ me when I passed by.
A.
not to see
B.
not to be seeing
C.
to not see
D.
having not seen
查看完整题目与答案
【单选题】She pretended to the manager, but actually she was thinking about something else.
A.
listening
B.
to have listened
C.
having listened
D.
to be listening
查看完整题目与答案
【单选题】She pretended TV when her mother came in.
A.
not to be watching
B.
not watching
C.
to not watch
D.
having not watched
查看完整题目与答案
【单选题】She pretended______when the teacher came into the classroom. [     ]
A.
to sleep
B.
sleeping
C.
to be sleeping
D.
that she is sleeping
查看完整题目与答案
【判断题】( )制冷剂液体过冷的目的是为了减少产生闪发气体,从而提高单位制冷量。
A.
正确
B.
错误
查看完整题目与答案
【判断题】导电性能介于导体和绝缘体之间的物体称为半导体
A.
正确
B.
错误
查看完整题目与答案
【单选题】She pretended _______when I came in.
A.
to read
B.
read
C.
to be reading
D.
reading
查看完整题目与答案
【简答题】"The Duchess was seated in a straight-backed" means that she tried to 1 . "What are you talking about?" implies that she pretended to be 2 and dared to 3 in order to 4 .
查看完整题目与答案
【单选题】She pretended to be calm but _____she was very nervous when she was being questioned.
A.
in actual
B.
as matter of fact
C.
actually
D.
in a fact
查看完整题目与答案
相关题目：
【单选题】She pretended to be calm but _______she was more than nervous at the time she was being questioned.
A.
in actual
B.
actually
C.
as matter of fact
D.
in a fact
查看完整题目与答案
【单选题】She pretended ________ me when I passed by.
A.
not to see
B.
not to be seeing
C.
to not see
D.
having not seen
查看完整题目与答案
【单选题】She pretended to the manager, but actually she was thinking about something else.
A.
listening
B.
to have listened
C.
having listened
D.
to be listening
查看完整题目与答案
【单选题】She pretended TV when her mother came in.
A.
not to be watching
B.
not watching
C.
to not watch
D.
having not watched
查看完整题目与答案
【单选题】She pretended______when the teacher came into the classroom. [     ]
A.
to sleep
B.
sleeping
C.
to be sleeping
D.
that she is sleeping
查看完整题目与答案
【判断题】( )制冷剂液体过冷的目的是为了减少产生闪发气体,从而提高单位制冷量。
A.
正确
B.
错误
查看完整题目与答案
【判断题】导电性能介于导体和绝缘体之间的物体称为半导体
A.
正确
B.
错误
查看完整题目与答案
【单选题】She pretended _______when I came in.
A.
to read
B.
read
C.
to be reading
D.
reading
查看完整题目与答案
【简答题】"The Duchess was seated in a straight-backed" means that she tried to 1 . "What are you talking about?" implies that she pretended to be 2 and dared to 3 in order to 4 .
查看完整题目与答案
【单选题】She pretended to be calm but _____she was very nervous when she was being questioned.
A.
in actual
B.
as matter of fact
C.
actually
D.
in a fact
查看完整题目与答案