问题
选择题
—How are you?
—_____[ ]
A. Hello!
B. I'm fine.
C. How are you?
D. Good morning
答案
答案：B
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—How are you?
—_____[ ]
A. Hello!
B. I'm fine.
C. How are you?
D. Good morning
答案：B
博弈局面，传媒结构发生了微妙变化。