A.A流向B,0.76m B.A流向B,1.76m C.B流向A,0.76m

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问题 A.A流向B,0.76mB.A流向B,1.76mC.B流向A,0.76mD.B流向A,1.76m

选项 A.A流向B,0.76m
B.A流向B,1.76m
C.B流向A,0.76m
D.B流向A,1.76m

答案 D

解析
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