人类活动产生的污染物或污染因素,进入环境的数量超过( )时,就会导致环境质量恶化,出现环境污染。
A. 环境现状
B. 环境容量
C. 环境浓度
When we talked about the correlation between language and culture, it is said that langue is an indispensable ________ of culture. Culture finds a better representation through language use.
A. tool
B. application
C. carrier
D. none of the above
The term category is used to refer to a group with certain features in _________ and we can think of the vocabulary we learn as an inherited set of category labels.
“Lexicalized” means “expressed as a ______ word”.