A.小于200mA
B.等于200mA
C.大于200mA
D.无法确定
答案:B
The whole towns were simply swept aside by the power of water.Cars, trains and buildings could not
________, ________ the people who stood in the way.[ ]
A. remain; or rather
B. survive; let alone
C. exist; more or less
D. achieve; besides
请从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性()
A.A
B.B
C.C
D.D