Your pants ______ dirty. You must wash them at once. [ ]
A. am
B. is
C. are
D. be
答案:C
M24×2螺纹的小径尺寸为()mm。
A.21.835
B.20.75
C.22
D.23
托管人对当日交易进行核算、估值及核对净值后,制作清算指令,完成T+1日的工作流程。()