（本小题满分13分）随机观测生产某种零件的某工厂25名工人的日加工零件数（单位：件）

气管插管时如果发生误吸，紧急处理，下列哪项不恰当

A．插管后气管内吸引

B．气管内用生理盐水和碳酸氢钠冲洗

C．应用血管扩张药

D．正压通气

E．大剂量激素的应用

缺词填充

Have you heard such an old English saying? It says that we must go to b__1___ early and get up early. Then we should be h__2__ and clever.

This is t__3____ .The body must have enough sleep to be healthy .Children of teenagers(青少年) should have ten hours’ s___4_____ every night .If they don’t have e__5____ sleep, they can’t do their work very w__6____.

The body also needs e__7___. Walking, running, jumping, swimming and playing games are all exercise. Exercise keeps the body s___8__. Exercise also keeps the blood(血) moving around inside the body .It is very i__9__ because our blood takes food to all parts of our body. The h_10___ also needs blood, exercise helps us to think better!

从化学知识的学习中，我们也可以学到做人做事的道理。比如两性氧化物，从悲观的角度看是不知“何去何从”，从乐观的角度去看是“左右逢源”。不同的“心态”，截然相反的结论。下列物质中既能与稀H₂SO₄反应，又能跟氢氧化钠溶液反应的是：

①NaHCO₃ ②新制Al₂O₃ ③Al(OH)₃ ④NH₄HCO₃ [ ]

A．③④

B．②③④

C．①③④

D．①②③④

素质教育