A:
B:
C:
D:
下列词语中划线的字,每对读音都不相同的一组是( )
制约环境承载力(即环境人口容量)的首要因素是( )
—Shall we have a smoke here?
—No, we _____ because this is gas station and the worker is carrying some petrol.
读图,回答: