14×7÷14×7=1 [ ]
错误
The remote control is ________ that controls a machine ________ a distance.[ ]
A. something, to
B. anything, to
C. something, from
D. anything, from
在正常凝血过程中,下列哪一项不能形成复合物()
A.因子Ⅸa,Ⅷa,磷脂,Ca离子
B.因子Ⅲ,Ⅶa,Ca离子
C.因子Ⅹa,Ⅴa,磷脂,Ca离子
D.因子Ⅻa,Ⅺa,Ⅸa,Ca离子
E.以上都对