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【单选题】
他弧焊发电机焊接电流的细调是靠( )来实现的。A.
改变他励绕组的匝数
B.
调节他励绕组回路中串联电阻的大小
C.
改变串励绕组的匝数
D.
调节串励绕组回路中串联电阻的大小
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【单选题】The audience were _______the performance of Chinese athletes at the 21st Winter Olympics. [ ]
A.
impressed by
B.
impressed on
C.
interesting in
D.
expressed by
【单选题】I have been trying to advise them not to act that way, but my advice had no _________on them.
A.
impression
B.
advantage
C.
influence
D.
affect
【单选题】______ nice time the boys had playing football with the national team last Sunday!
A.
What
B.
What a
C.
How
D.
How a
【单选题】—What a nice bike! How long ______ you ______ it? —Just two weeks. [ ]
A.
will; buy
B.
did; buy
C.
are; having
D.
have; had
【单选题】The hard-working farmers and their happy life _____ we saw in the countryside made a wonderful impression on us.
A.
whom
B.
who
C.
which
D.
/
【单选题】—What a nice bike! Is it new?—No. I have _________ it for 2 years.
A.
had
B.
sold
C.
borrowed
D.
bought
【单选题】My first______ of him was that he enjoyed telling jokes.
A.
expression
B.
attention
C.
satisfaction
D.
impression
【单选题】----What a nice bike! How long have you ______ it ? ----- For a week. I spent all my money on it.
A.
bought
B.
had
C.
taken
D.
kept
【单选题】----What a nice bike! How long ____ you ____it? ----- Just two weeks.
A.
have, bought
B.
did, buy
C.
have, had
D.
are, having
【单选题】The final document was supposed to mend the damage ______upon the world by the war.
A.
impressed
B.
compromised
C.
imposed
D.
condensed
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