Language is the most important mental () of man. (creative)
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They have done nothing to () which of these alternatives should be considered. (specification)
It was very ()of you to send me a postcard. (consider)
The culture of the modern man is () urban, as distinguished from the folk culture. (character)
下面哪一类不属于装配式的生产类型( )
A. 水泥
B. 汽车
C. 家电
D. 机床
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