— I haven't found any money though I've searched the drawer bottom up.

— Then, I'm afraid there is _____ left. [ ]

A. nothing

B. no one

C. none

D. neither

率的计算公式为（）

A.某现象实际发生数/可能发生某现象的观察单位总数×K

B.p±1.96×Sp

C.某一构成部分的个体数/事物各构成部分个体数的总和×100%

D.p±2.58×Sp

E.p±2.33×Sp