题目内容
－Why do mummies(木乃伊) ________ go bad?
－Because they have chemicals(化学药品) on them. Chemicals can kill germs(微生物).
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A．always
B．often
C．ever
D．never.
答案：D
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题目内容
－Why do mummies(木乃伊) ________ go bad?
－Because they have chemicals(化学药品) on them. Chemicals can kill germs(微生物).
[ ]