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【单选题】
关于乱的叙述，下列正确的是（）。A.
传播途径主要是通过呼吸道感染
B.
只需少量细菌（10～10）即可使人感染发病
C.
细菌侵入肠上皮细胞和肠腺而损伤肠壁
D.
霍乱弧菌的O1群和O139群的致病机制与过程是一样的
E.
致病是通过肠毒素作用于小肠上皮细胞受体引起剧烈腹泻和腹痛
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反馈参考答案：
举一反三
【简答题】Choose the proper word for each sentence and fill in the blanks with its proper form or derivative. 1. I _________ paying so much for such inferior goods. 2. The wrong attitude will have exactly the _...
【单选题】Choose the word bear the same meaning with "maddening"
A.
delightful
B.
annoying
C.
mellow
D.
mania
【单选题】Choose the proper word to fill in the blank. ____________ and endurable are synonyms, both describing conditions that may be hard, but in which a person is able to stay alive and sane in spite of pain...
A.
Bear
B.
Bearable
C.
Unbearable
D.
Unbearably
【简答题】被誉为天下第一行书的是王羲之的哪个著作？
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