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【单选题】
在单相桥式整流电路中,如果电源变压器次级电压有效值是U2,则每只整流二极管所承受的最高反向电压是()。A.
U2
B.
2 U2
C.
3 U2
D.
U2
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举一反三
【单选题】Doctors have decided the only way he can live anything near a (n) ______life is to give him an operation.
A.
normal
B.
ordinary
C.
regular
D.
average
【简答题】Li Ming is discussing meal arrangements with Ms. Blaire Listen to the conversation and complete the answers to the following questions. 1. What's the problem with meal arrangements? The tourists comp...
【简答题】n. somebody who claims that he can predict what will happen in the future
【单选题】He is so strong that he can lift 100 kilograms.
A.
N = not an argument
B.
A = an argument that is neither valid nor sound
C.
V = an argument that is valid but not sound
D.
B = an argument that is both valid and sound
【单选题】He can choose from different jobs and probably changes his work more frequently as he is not ______ to a choice within a small radius.
A.
restrained
B.
hampered
C.
refrained
D.
restricted
【多选题】What are some projects undertaken by China Southwest Architectural Design Institute?
A.
Tianfu International Airport
B.
Shuagnliu International Airport Terminal 1 and 2
C.
Chengdu-Europe Express Railway
D.
Chengdu East Railway Station
【简答题】Huge projects designed to help poorer countries can sometimes do more harm than good. ( )
【判断题】That the huge water projects have diverted the rivers causes the Aral Sea to shrink .
A.
正确
B.
错误
【单选题】He can speak English, German, French and Japanese. He is really a man with a (n) ______ for language.
A.
gift
B.
present
C.
ability
D.
skill
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