有些细菌、真菌与动植物共同生活,相互依赖,彼此有利,这种现象叫做( )
A:寄生
B:共生
C:腐生
D:竞争
读图,完成下题。
Mr. Chen is very _________ every day. He has no time to help his daughter with her homework.
下列句子中没有语病的一项是( )
____ is the weather ____in Beijing?