有机磷农药中毒的特效解毒药是（）
A.硫代硫酸钠
B.阿托品
C.亚硝酸盐
D.阿托品+解磷定
E.美蓝
参考答案：D
Lots of waste has been dumped into the river, which has led to________. [ ]
A. lots of fish having been killed
B. kill lots of fish
C. lots of fish being killed
D. lots of fish to kill
.
“ Look at him! He behaved ________ nothing had happened”, said Mary.
A．as if
B．even if
C．if
D．unless
