进入高空作业现场,应截安全帽。高处作业人员必须使用安全带。
参考答案：对
The senator agreed that his support of the measure would jeopardize his chances for reelection.
A．benefit
B．endanger
C．hinder
D．disturb
腹泻患儿体重6kg，精神萎靡，呼吸深长，唇樱桃红色。COCP20vol％。纠正酸中毒，按体液总量计算，需用碱性液的mEq数是（）
A.84mEq
B.72mEq
C.60mEq
D.36mEq
E.24mEq
