future __________ 子孙后代

A.Y.是

B.N.否

A.自然免疫

B.被动免疫

C.注射疫苗

D.非特异性免疫

A.《人类环境宣言》

B.《世界自然资源保护大纲》

C.《东京宣言》

D.《21世纪行动议程》

A.The company promises future improvements in tasks like networking, but, applications are still a sore point.

B.The company promises future improvements in tasks like networking, but applications are still a sore point.

C.The company promises future improvements in tasks like networking. But applications are still a sore point.

D.The company promises future improvements in tasks like networking. but applications are still

A.排污收费制度

B.环境影响评价制度

C.“三同时”制度

D.环境事故报告制度