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问题 单项选择题

黑热病的传播途径是

A．经食物传播
B．经水传播
C．经虫媒传播
D．经土壤传播
E．经血液传播

答案

参考答案：C

解析：黑热病是由于白蛉叮咬而感染杜氏利什曼原虫引起的人兽共患疾病。

选择题

— Peter, what if your parents go out?

— They ask me to _____ myself. [ ]

A. look after

B. look up

C. look for

D. look through

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选择题

It was too dark and I couldn’t _______ the words written on the wall.[ ]

A. make out

B. give up

C. talk over

D. look around
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