问题
选择题
Germs are very small. They can ________ the human body______ the skin. [ ]
A. get up…across
B. get into…through
C. get out of…from
D. get into…across
答案
答案：B
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Germs are very small. They can ________ the human body______ the skin. [ ]
A. get up…across
B. get into…through
C. get out of…from
D. get into…across
答案：B