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【单选题】
毒物代谢的两重性是指A.
I相反应可以降低毒性,I相反应可以增加毒性
B.
经代谢后,水溶性增大,毒性也增大
C.
原型不致癌的物质经过生物转化变为致癌物
D.
毒物代谢可经过I相反应和I相反应
E.
经过代谢,毒性可增加(代谢活化)或降低(代谢解毒)
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【简答题】They also warn that these countries are among the most _________ to climate change. Alax Bvulnerable Caddictive Dnasty
【单选题】According to the text the drug problem for the developing countries is the most serious because______.
A.
they lack necessary fund to curb drug abuse
B.
they are both producing and consuming countries of drugs
C.
they are not efficient in their attempt to combat drug abuse
D.
they have not enlisted support from developed countries
【简答题】The five countries that have been affected the most are ______, ______, ______, ______ and ______.
【单选题】Most of the developing countries are faced with lots of troubles , _____the financial problem is not the worst .
A.
which
B.
with which
C.
that
D.
of which
【简答题】阅读理解。 Most new people were born in developing countries. These countries are found in much of Africa, South America and some parts of Asia. In the developed countries of Europe and North America, the ...
【单选题】患者女，32岁，幼年曾患麻疹．反复咳嗽、咳痰10年，多于晨起及夜间睡眠时咳大量黄痰，此次受凉后咳嗽加重，咳痰增多，为黄绿色痰，伴发热，间断咯血2次，每次量约30ml。查体：T38.2℃，P100次／分，双肺呼吸音粗，双下肺可闻及粗湿啰音，血常规：WBC12×10 9 ／L，NEU%：88%。下一步最有效的治疗措施（）。
A.
高流量吸氧
B.
呼吸兴奋剂
C.
有创气管插管
D.
止血药物
E.
拍背排痰
F.
吸痰
【简答题】In comparison with those rich countries, ______ will continue to predominate in most developing countries.
【简答题】影响消费需求变化的最主要的因素是__________。 (A)个人可任意支配收入 (B)个人可支配收入 (C)消费者储蓄和信贷 (D)消费者支出模式
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