监测水温的测具应放置在地下水水面以下1.0m处,或放置在泉水、正在开采的生产井出水水流中心处,静置()后读数。
A、1h
B、30min
C、20min
D、5min
参考答案:D
迅速危及生命的婴幼儿意外伤害,如触电、外伤大出血、气管异物、误食毒物、车祸等,这一类事故必须在现场争分夺秒地进行抢救,避免()。
A.伤残
B.后遗症
C.出血
D.死亡
Jack, are you leaving now? It's 7:20.()
A.Yes, it‘s still early.
B.No, thirty minutes is enough
C.Yes, the bag is not ready.
D.No, I‘ll set off in 30 minutes.