A.攪拌輸送車司機(jī)可經(jīng)常進(jìn)入,以了解運送工地; B.泵車司機(jī)可經(jīng)常進(jìn)入,以了解澆筑地點; C.裝載機(jī)司機(jī)可經(jīng)常進(jìn)入,以了上料需求; D.嚴(yán)禁閑雜人員進(jìn)入.
A.必須經(jīng)過降溫; B.必須經(jīng)過過濾; C.必須經(jīng)過檢驗; D.必須經(jīng)過升溫.
A.可飲用軟水; B.礦泉水; C.蒸餾水; D.自來水.