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【简答题】
病原物的侵染过程分哪几个时期?
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反馈参考答案：
举一反三
【单选题】In the opening paragraph, Spanish researchers suggest that
A.
the weather system of Europe follows a strict weekly cycle.
B.
there is a great possibility of rain in Spain on weekends.
C.
rain cycles have resulted from the excessive human activities.
D.
weather interacts with human activities in a straightforward way.
【单选题】Faced with financial crisis, we think it is time to ____ the trip to Europe. [ ]
A.
call in
B.
call for
C.
call off
D.
call on
【简答题】Quel est le pays le plus petit d'Europe ? (Europe n.f. 欧洲)
【单选题】According to the passage, road accidents in Europe are mainly caused by ______.
A.
drivers falling asleep at the wheel
B.
long-distance lorry driving
C.
cars without a safety system
D.
drivers' sudden changes in steering
【单选题】李某,女,27岁,妊娠6个月。近来自感乏力倦怠,血液化验显示血红蛋白8克(低于正常),医生给予铁剂治疗。此治疗目的是
A.
对症治疗
B.
预防作用
C.
对因治疗
D.
局部作用
E.
减轻妊娠反应
【简答题】完成反应方程式: (1) NaClO + As + H 2 O —— (2) AsH 3 + AgNO 3 + H 2 O —— (3) SbCl 3 + H 2 O —— (4) BiCl 3 + H 2 O ——
【简答题】NaClO + As + H 2 O ——
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