问题
选择题
I am inside the room, but (但是) Li Ming is ___________ the room.[ ]
A. inside
B. in
C. out
D. outside
答案
答案：D
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I am inside the room, but (但是) Li Ming is ___________ the room.[ ]
A. inside
B. in
C. out
D. outside
答案：D
）互为同分异构体