【简答题】把一个高4cm的圆柱底面沿半径平均分成若干等份,然后把圆柱切开,拼成一个与它等底等高的近似长方体。长方体的表面积比圆柱的表面积增加了40cm2,原来圆柱的体积是( )cm3。 提示:增加的40cm2是哪些面的面积。 长方体的前面+后面=圆柱侧面积 长方体的上面+下面=圆柱2个底面积 长方体左面+右面=多出来的40cm3 长方体左面或右面一个面的面积=( )cm2 长方体的高=( )cm 长方...
【简答题】要设置隐藏共享,需要在共享名的后面加上()。
【简答题】要设置隐藏共享,需要在共享名的后面加上____________符号。
【单选题】. ---Was the manager angry with you when he saw you playing computer games in offece hours? ---No, he was not angry at all ____ I was doing, but just said, “ Go back where you were.”
【单选题】—Why were you angry with Mike this morning? —Because he took my bike .
A.
by asking for permission
【简答题】已知一长方体的底面为正方形,它的前、后、左、右面的面积和为80平方厘米,又已知长方体的高是5厘米,则该长方体的体积是多少立方厘米?
【单选题】— You seemed to be angry with what he said. —Well,not exactly so. It was the way ____he spoke ____what he said that made me angry.
D.
in which; together with
【单选题】从上面、下面、前面、后面、左面、右面看,都是正方形的物体是 [ ]