目前各主要城市商品房预售比例普遍在( )以上。
A.75% B.80%C.85% D.90%
参考答案:B
The bed has been _______ in the family. It was my great grandmother’s originally.
A.handedout
B.handedover
C.handeddown
D.handedround
下列哪项分布的资料,均数等于中位数()
A.对称
B.左偏态
C.右偏态
D.对数正态
E.以上均不是