直流电源电路如下图所示。已知VI=24V,稳压管稳压值VZ=5.3v,三极管的VBE=0.7V,VT1管的饱和压降VCES1=2V。
第1题
A.She has to quit her job in the laboratory.
B.She cut herself while working in the laboratory.
C.She enjoys doing laboratory experiments.
D.She feels that the man is dedicated to his work too.
第3题
B: Yes.I first met her two years ago.She ________ at a radio shop at that time.
A.was working
B.has worked
C.is working
D.had worked
第5题
A.Smith & Wang, 2018a
B.Smith & Wang, 2018b
C.Smith & Wang, 2018c
D.Smith & Wang, 2018
第6题
【口语题】Suppose you are Wang Hong(or …), the designer of Tianyu Garment Company. You meet William Smith, sales manager of ABC Company, at the business party. Greet each other and make a self-introduction. (Handshaking, exchanging cards)
第7题
W: Oh.that's because she is always on the Internet.chatting with her friends.Why don't you come with me and see if Lisa is available?
Q: What does the woman imply?
(6)
A.Sandy is working on her lab reports.
B.Sandy is busy with her engagement.
C.Lisa might be able to help.
D.Lisa is always on the Internet.
第8题
A: works
B: working
C: work
D: has worked
第9题
-- Happy Teachers' Day to you, Mr Wang!
-- _________.
A.Thank you
B.All the same
C.Me, too
D.The same to you
第10题
Mrs. Wang told me that her husband ______ (leave)about two hours before.
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