题目内容

Insects thrive all over, from the hottest deserts to the snow-clad peaks of lofty mountains.()

A. silently
B. totally
C. everywhere
D. overhead

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My sister has friends at school. But she has good friends.()

A. few, a few
B. a few, few
C. little, a little
D. a little, little

A2型题男性，40岁，4个月前发热、腹痛、腹泻，服药1天好转，此后腹泻反复发作，多于劳累及进食生冷食物后出现，大便5～6次/日，稀便有黏液，有腹痛、里急后重。体检：左下腹压痛。大便镜检WBC20～30个/HP、RBC5～10个/HP，发现有结肠阿米巴滋养体。此患者最可能的诊断是（）。

A. 急性菌痢
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C. 慢性菌痢
D. 慢性血吸虫病
E. 肠结核

Hearing problems may be alleviated by changes in diet and exercise habits.

A. removed
B. cured
C. worsened
D. relieved

用Na2C2O4标定KMnO2溶液时，温度应控制在( )。

A. 45℃；
B. 75～85℃；
C. 50℃；
D. 100℃。