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2019-06-05 14:18:02| й
31. ABCܼ۸Ϊ520Ԫֱ9.5ۣ9ۣ8.75۳ۣܼ۸Ϊ474ԪABļ۸Ϊ54ABCļ۸ֱǶԪ?

A.25020070 B.200160160

C.150120250 D.10080340

32.·ǧףһ·̵1/33ףڶʣµ1/20.5ףʣµ3/42ףʣ2û꣬Ҫ·?

A.51 B.45 C.42 D.33

33.һװװ28ʱʣ80%ûװװ85ʱʣ1320̨ûװԹж̨?

A.3360 B.3258 C.2752 D.2800

34.ԭŨΪ18%ˮҺ100mlظ²2Σ100mlˮϺ󣬵100mlҺʱˮҺŨȱ˶?

A.9% B.7.5% C.4.5% D.3.6%

35.ABCD֧ӿչÿ֮䶼Ҫ1֪Aѱ3Bѱ2Cѱ1Dѱ˼?

A.3 B.2 C.1 D.0

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