The germs can get ____ the human body ____ the mouth. [ ]A. on; across B. into; across C. on; throug
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题目简介
The germs can get ____ the human body ____ the mouth. [ ]A. on; across B. into; across C. on; throug
题目详情
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B. into; across
C. on; through
D. into; through
答案