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【单选题】
在地质条件和通风状况基本相同的情况下，炮采工作面在放炮时粉尘浓度一般为（）。A.
（300—500）mg/m 3
B.
（400—600）mg/m 3
C.
（450—550）mg/m 3
D.
（200—400）mg/m 3
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【单选题】Most languages of uncivilized groups are ______.
A.
adequate
B.
numerous
C.
ingenious
D.
ingenuous
【简答题】The most notable difference among the various ethnic groups are______.
【单选题】Rock music usually _______ the young people in most countries.
A.
applies to
B.
appeals to
C.
amazes
D.
actress
【单选题】He is one of the most( ) rock climbers in the whole town.
A.
experienced
B.
explained
C.
exploded
D.
experimented
【单选题】The most characteristic thing about the Fashion Night of Chinese Rock is that______.
A.
it will let the audience choose the music
B.
it is to bring thousands of rock fans out of their homes
C.
it will certainly cause a rock storm throughout China
D.
it is to be held in memory of one of the greatest musicians
【简答题】The three major rock groups are ( ), ( ) and ( ).
【单选题】During the 1960s, songs about winter ___________ by many famous rock groups were popular among people of different ages.
A.
released
B.
being released
C.
releasing
D.
having been released
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