洒布机作业时应设专人指挥，作业人员不得在沥青洒布机什么风向上？
下风向
暂无解析
Tammy:Someoneisatthedoctor.
Richard:______.
-“Youfinallymadeit,didn'tyou?”
-“Yes，____yourhelp,Iwouldn'thavesucceeded.”
That’s________excitingnewsthatI’dliketotelleveryonetosharethejoy.
—Icametoyourofficeyesterdaymorning,butnobodywasin.
—Oh,we__________ameetinginthemeetingroom.
Thethief’s( )ofguiltclosedthecase.