精神异常初步判断应该从以下哪几个方面()
A. 行为
B. 情绪
C. 认知
D. 生理表现
My American host _________me on my English, which made me very glad.
It is considered impolite in some cultures to visit a friend withou__________him in advance.
It's a well-known fact that China is a(n) _________nation.
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