【简答题】把圆柱的侧面剪开后展开图是______形,它的一条边等于圆柱的______,另一条边是圆柱的______,它的面积是圆柱的______.
【单选题】Electronic Product Code最正确的释义是哪一个?
【多选题】Failure of mechanical and electronic product includes ( ) stages.
【单选题】对机体各脏腑组织起着推动温煦作用的主要是
【单选题】对机体各脏腑组织起着推动温煦作用的主要是
【简答题】等底等高的圆柱和圆锥,圆柱的体积是圆锥的______,圆锥的体积是圆柱的______,圆柱的体积比圆锥大______,圆锥的体积比圆柱小______.
【简答题】圆柱的底面半径是3cm,圆柱的高是5cm,则圆柱的侧面积是( )cm 2 。
【单选题】对机体各脏腑组织起着推动温煦作用的主要是
【简答题】有两个高相等的圆柱.甲圆柱和乙圆柱的底面半径的是2:3.如果甲圆柱的体积是16立方厘米,乙圆柱的体积是______立方厘米.
【单选题】Which statement about Epeat is wrong?
A.
Its full name is Electronic Product Environmental Assessment Tool.
B.
It is an environmental certification evaluating computers.
C.
It includes 51 environmental criteria in total.
D.
To qualify for Epeat registration, a product must meet all 51 criteria.