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A. She has already heard about the news.
B. She didnt hear about the concert.
C. She loves music very much.
D. She prefers staying at school
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A. To write his own poems.
B. To form his own band.
C. To compose his new song.tlp
D. To take part in a singing contest
为了把电压表的测量范围扩大100倍,倍率器的电阻应是内阻的倍()
C. 99
D. 100