下列各图反映的地理现象中,主要由外力作用形成的是
A、A
B、B
C、C
D、D
答案:C
— Why don't we go swimming tomorrow?
— ______. [ ]
A. You're great
B. That's right
C. What a good idea
D. No, I don't
能迅速制止有机磷酸酯类中毒所致肌颤的药物是
A.碘解磷定
B.阿托品
C.新斯的明
D.氯琥珀胆碱
E.筒箭毒碱