问题
选择题
______!The old man hates loud noise a lot, [ ]
A. Keep quiet
B. Stop smoking
C. Make food
D. Have fun
答案
答案：A
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______!The old man hates loud noise a lot, [ ]
A. Keep quiet
B. Stop smoking
C. Make food
D. Have fun
答案：A
，正电荷
，正电荷
，负电荷
，负电荷