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【单选题】
在我国肉类消费中禽肉占的比例为( )。
A.
64.9%
B.
5.2%
C.
21.6%
D.
8.3%
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举一反三
【单选题】Where did the woman live before she moved?
A.
In an apartment on University Avenue.
B.
In an apartment in the city.
C.
In a house in the city.
D.
At the university. Where are the man and woman at this moment?
【判断题】RLC串联电路,谐振频率与串联电阻R无关。(    )
A.
正确
B.
错误
【判断题】RLC串联电路发生谐振,电路阻抗Z=R。( )
A.
正确
B.
错误
【单选题】Eating _______ sweet food is not good for our health (健康). [     ]
A.
too many
B.
too much
C.
many too
D.
much too
【单选题】—________ is ten plus twenty? —It's thirty. [     ]
A.
How much
B.
How many
C.
What
D.
How
【单选题】______ is five plus five?
A.
How many      
B.
How much        
C.
What            
D.
Which
【单选题】The woman moved in the apartment______.
A.
last week
B.
last month
C.
half a year ago
D.
a year ago
【单选题】_____ some people regard as a drawback is seen as a plus by many others. [     ]
A.
Whether
B.
What
C.
That
D.
How
【判断题】RLC串联谐振,电路中电流最大,称为电流谐振。(    )
A.
正确
B.
错误
【判断题】RLC串联电路中,R越大,则选择性越差。(    )
A.
正确
B.
错误
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