红外分光光度法在杂质检查中主要用于药物中无效或低效晶形的检查。（）

     My grandfather never watched TV. He thought that people spent too much time ___1__ it. Some of his friends ___2__ talked about sports shows, the movies and plays. My grandfather said to himself, "They

never read ___3__ books or go out in the evening. "__4___ he didn't buy a TV.

     Two years __5___ my grandfather was 60 years old. He stopped __6___ in the hospital. My father

bought him a TV. He __7___ to watch all the news. He knows __8___ more about the world now. And

he reads more books, too.

     Now, my grandfather will get very __9___ if you trouble him (麻烦)  when he is watching TV. I can't

 understand (明白) that one can change his _____ when he is 60.

患者，男性，25岁，因右下牙自发痛3天来求治，半年前右下牙开始出现冷、热刺激痛，以后经常隐隐不适。检查发现右下4远中面深龋，探之穿髓，探痛（++），叩痛（±），远中牙龈 * * 增生长入龋洞内。

对该病例若不用麻醉拔髓而用失活剂失活牙髓，根据临床情况最应该注意的问题是（）

A.掌握药物的剂量

B.封入丁香油酚棉球减轻疼痛

C.掌握封药时间

D.避免药物从邻面溢出烧伤牙周组织

E.封入失活剂后再行局部麻醉以免封药后疼痛

远视眼的明视距离 _________ 25cm，其近点远点都比正常人_________，需配戴用_________，可以得到矫正．

基本建设工程，按照它的组成内容不同，把一个建设项目的结构划分为单项工程、单位工程、分部分项工程和分项工程等项目。( )

主风机出入口流量不变，入口开大，是因为（）

A、出口压力上升

B、出口放空漏

C、大气温度下降

D、滤布差压上升