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0,1,1/4,1/2,(),5/64 A.1/8 B.1/6 C.3/16 D.3/8
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1/2+(1/2)2+(1/2)3+(1/2)4的值是()。A.1/16 B.7/8 C.15
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(),-1/4,-3/8,-5/16 A.-1 B.-1/2 C.1/2 D.1
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(),-1/4,-3/8,-5/16 A.-1 B.-1/2 C.1/2 D.1
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2,4,3,(),13/4,27/8,53/16。A.1 B.7/2 C.7/3 D.4
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0,1,1/4,1/2,(),5/64A.1/8 B.1/6 C.3/16 D.3/8
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5人的血清滴度分别为1:2 1:4 1:8 1:16 1:32 则平均滴度为A.1:12.4B.1:8C.1:16D.1:8~1:16E.以上都