《工作场所有毒气体检测报警装置设置规范》 “室外”检测报警点设在有毒气体释放点的( )的位置。
A、常年主导风向下风向A
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Theengineer______myfatherworksisabout50yearsold.
Let’snottakeJohnwithusonourfamilyoutingthistime,_______________?
Ithasbeenyears________Ireturnedhome.
Perseveranceisakindofqualityandthatis_______ittakestodoanythingwell.
Unlikehiscontemporariesintheearly20thcentury,()didnotbreakupwiththepoetictraditionnormadeanyexperimentonform.
