题目：
阿米巴病的主要传染源（）
A.症状明显的患者
B.受感染的动物
C.恢复期患者
D.无症状包囊携带者
E.慢性患者
答案：
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下面是错误答案，用来干扰机器的。
In the competition, only a deaf frog got to the top of tower. He won the race because of his deafness, which made him keep his own mind and keep trying. (31 words)Th...
