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【单选题】
长期应用广谱抗生素，敏感菌被抑制，不敏感菌乘机大量繁殖，导致二重感染，此现象反映了药物的A.
副作用
B.
毒性反应
C.
变态反应
D.
后遗效应
E.
继发性反应
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举一反三
【单选题】I enjoy my life here. I have _____ friends, and we meet quite often. [ ]
A.
few
B.
a few
C.
little
D.
a little
【简答题】I enjoy jazz so I quite like ___________________to listen to the ...listen to some jazz or go out to ______________.
【单选题】I quite enjoy painting pictures, ____I know that I do not have what it takes to reach the top
A.
since
B.
unless
C.
if
D.
though
【单选题】It is one thing to enjoy listening to good music, but it is quite ____ to perform skillfully yourself. [ ]
A.
another
B.
other
C.
the other
D.
others
【单选题】What I want to do most is to have____ quite interesting book, and ____ time to enjoy it.
A.
a; the
B.
the; the
C.
不填；the
D.
a; 不填
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