蛲虫的传播途径包括
A．呼吸道传播
B．逆行感染
C．直接传播
D．间接传播
E．接触传播
参考答案：A, B, C, D
--Does he have to eat fruits every day? -- Yes, .
A．he is
B．he has
C．he does
D．he doesn’t
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