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A. һNo(w)C(j) B. W(xu)ʽx=2
C. ÿ(g)кһ(g) D. cԪص|(zh)Ȟ31
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A.(yng)ǰԭӵķN͔(sh)Ŀ׃
B.ܶ
C.ԪصĻσr(ji)ڷ(yng)ǰֲ׃
D.(yng)cķӂ(g)(sh)Ȟ11
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