为保护湿地,我国在前些年已明令禁止继续开发“北大荒”。明令禁止继续开发“北大荒”的行为,突出体现了可持续发展中
She packed______ her job, and went off to Qingdao for the Navy celebration.
You waste much time______pig flu.on the internet..
---- Is there a vaccine _____ pig influenza?, I’m anxious to know. ----- Don’t worry, there is a vaccine _____ for pigs against pig influenza
Has she had a cold like pig flu. _____? for she is absent.
The teacher criticize me, so I must finish my essay about agriculture,farmer and rural areas today______.