The price of peanuts in Hangzhou has______ since late May, the Qianjiang Evening News reported.

A．more doubled than

B．more than doubled

C．doubled more than

D．doubled than more

楼梯梯段的厚度，是指______尺寸。

A．垂直于水平面

B．平行于水平面

C．垂直于梯板面

D．垂直于踏步面