国内外指南推荐在室颤/无脉性室速(心脏骤停)抢救患者,胺碘酮的静脉负荷量首剂是()。
A.150mg
B.200mg
C.300mg
D.400mg
参考答案:C
The split between humans and living apes is thought by some scholars ____ 15 to 20 million years ago.[ ]
A. to occur
B. occurring
C. to have occurred
D. having occurred
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