下列关于给药原则的描述，错误的一项是（） A．用药期间密切观察病人的反应 B．给药前

此行多一个词：把多余的词用斜线(＼)划掉，在该行右边横线上写出该词，并用斜线划掉。

此行缺一个词：在缺词处加一个漏字符号(∧)，在该行右边横线上写出应加的单词。

此行错一个词：在错词下画一横线，在该行右边横线上写出改正后的单词。

注意：原行没有错误的不要改。

My classmate，Joseph，is at present in hospital                                                         

with a breaking leg．He was walking to school the other                                              1．         

day when he let a bicycle ran right into him．He never                                                2．         

watches where he is going，so he often gets into the trouble．                                     3．         

But he is having a nice time there．He has a comfortable                                             4．         

room，patiently nurses，and a great deal of time to read．                                                 5．         

Some friends of his go to see him every day，they take him                                         6．         

lots of good book and fresh fruit．He is not losing any time                                                7．         

from school because he is busy study what he has                                                               8．         

missed in class．The doctor says he is recovering fast than                                       9．         

expected and will be out of hospital a few weeks．                                                      10．         

自去年秋季以来，我市部分县受到严重的旱灾，人畜饮水都非常困难．为此农村打井兴建简易的自来水厂，喝上清洁的水．

（1）地下水的酸碱度可用______测定．

（2）自然界的水经过一系列净化处理后，成为比较清洁的自来水．下列与自来水的净化过程无关的是______（填序号）

A．过滤     B．消毒     C．电解

（3）硬水给生活和生产带来很多麻烦，平时可用______来区分硬水和软水．

（4）水在自然界中不断循环，下列有关水蒸发的说法，正确的是______（填序号）．

A．水分子不断运动   B．水分子变大   C．水分子间的间隔变小．

岩石密度越大,地震波在其岩层中传播的速度越大.

压力流