网友您好， 请在下方输入框内输入要搜索的题目：

题目内容 （请给出正确答案）

Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an ____.

A.Orsat apparatus

B.flame safety lamp

C.Halide torch

D.combustible gas indicator

参考答案

更多 “ Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an ____.A.Orsat apparatusB.flame safety lampC.Halide torchD.combustible gas indicator ” 相关考题
考题 ()that happen,what()we do? A、If…shallB、Suppose…shallC、Should…wouldD、Had…should
查看答案
考题 _____the hall, he found all the people_______ there. A.Entered; seatB.Entering; seatedC.To enter; sittingD.Entering; seating
查看答案
考题 How long() you() a member of the club? A.have,,joinedB.have,,beenC.has,,joinedD.has,,been
查看答案
考题 oxygen
查看答案
考题 Last Sunday, Jane had the windows _________.A. cleaningB. to cleanC. cleaned
查看答案
考题 Why()the old block of flats()demolished next month? A、are…beingB、is…beingC、has…beenD、have…been
查看答案
考题 In the case of new crude oil tankers，the additional ballast permitted shall be carried in cargo tanks only if such tanks have been ______ before departure from an oil unloading port or terminal.A.inertedB.crude oil washedC.dilutedD.cleaned
查看答案
考题 ______ it rain tomorrow moring, the loading ______.A.Should / will be postponedB.If / shall be postponedC.Should / would be postponedD.If / has to be postponed
查看答案
考题 Category 2 fuel _____________________
查看答案
考题 调用（）方法可以选中单选按钮。A．attr("checked","checked")B．attr("checked",false)C．attr("checked")D．removeAttr("checked")
查看答案
热门标签
最新试卷