男性,45岁,工作中右手中指和食指被卡在机器中。
从肢体离断到手术,时间最好不要超过()
A.5小时
B.6小时
C.7小时
D.8小时
E.9小时
参考答案:B
常见的引起人类疟疾的病原体种类有()
A.间日疟原虫(Pvivax)
B.三日疟原虫(PmalariaE.
C.恶性疟原虫(Pfalciparum)
D.卵形疟原虫(PovalE.
E.娄勒疟原虫(Pknowlesi)
This river is seriously polluted now,but once inside it ______. [ ]
A. there lived many fishes
B. lived many fishes
C. where lived many fishes
D. that lived many fishes