IDE硬盘与主机相连的扁平电缆为（）线。
A.64
B.40
C.34
D.32
参考答案：B
I can not go to the private high school.______，5000 dollars is just too much for my family to spare from living fees.
A．In other words
B．That is
C．I mean
D．Or rather
一个圆锥的母线与高的夹角为30°，那么这个圆锥的侧面展开图中扇形的弧长与半径的比是______．
