毒性气体或可燃性气体气瓶入库后,要连续( )天定时测定库内空气中毒性或可燃性气体的 发布时间:2018-01-11 01:33 │ 来源:www.tikuol.com 题型:单项选择题 问题: 毒性气体或可燃性气体气瓶入库后,要连续( )天定时测定库内空气中毒性或可燃性气体的浓度。A.5~7B.3~5C.2~3D.1~2
题型:单项选择题 —You didn’t go to Europe, why? —I _____ this morning, but I _____ to Shanghai because of an emergency .A.was to start; am goingB.was scheduled to start; will goC.should have started; am goingD.would like to start; will go 查看答案