The traffic department has taken effective measures to ________ the traffic accidents. A. cut off B.cut down C. cut out D.cut up 答案:B(1)圆柱体的底面半径是0.4分米,高是8厘米.它的侧面积是________平方厘米
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A.200.96B.251.2
C.301.44D.201.46
(2)圆柱体的底面半径是0.4分米,高是8厘米.它的表面积是________平方厘米
[ ]
A.200.96B.251.2
C.301.44D.201.46