Thedestructionofthetwintowers_________shockandangerthroughouttheworld．

Thisdiploma(毕业文凭)________thatyouhavecompletedhighschool.

Q表示产量,成本C(Q)=100+13Q，单价p，需求量Q(p)=800/P+3-2则工厂取得利润最大时的产量为_____

Ifound________toanswerallthequestionswithinthetimegiven.

Agreatnumberofsmallpowerstations________(setup)intheircounty sinceliberation.