联合国世界气象组织(WMO)称，北冰洋海冰2012年消融面积比美国还大(下图)，监测北冰洋海冰面积变化速度的地理信息技术是( )
---- 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______.
----- Would you like to climb the Mountain Tai on May Day? _____, I’d like to.
---- Are you sure you really want it for watching the Navy celebration in Qingdao? ----_______, I’m willing to pay____ you ask for.
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