以下哪一项是风险管理纠正活动的例子（）？ A.进行一个风险审计 B.制定进一步的

速扑杀对（）有特效。

A、蚜虫

B、地下害虫

C、蚧壳虫

D、蓟马

制冷设备工作时，随热负荷变化，蒸发器的供液量应该是（）。

A.热负荷增大供液量增加 

B.热负荷减少供液量增加 

C.热负荷增大供液量减少 

D.热负荷减少供液量不变

Doctors have known for a long time that extremely loud noises can cause hearing damage or loss．The noise can be the sound of a jet airplane or machines in factories of loud music or other common sound at home and at work．A person only needs to hear the noise for little more than one second to be affected．

An American scientist has found that using aspirin （阿斯匹林） increase the temporary （暂时的）hearing loss or damage from loud noise．He did an experiment using a number of students at a university who all had normal hearing．He gave them different amounts of aspirin for different periods of time, then he tested their hearing ability．He found that students who were given four grams of aspirin a day for two days suffered much greater temporary hearing loss than those who did not use aspirin．The hearing loss was about two times as great．

The scientist said millions of persons in the U．S．use much larger amounts of aspirin than were used in his experiment．He said these persons face a serious danger of suffering hearing loss from loud noise．

1．Doctors have long known that__________．

A．one may lose his hearing when he hears a terribly loud noise．

B．one may become deaf when he hears a loud noise．

C．loud noises can cause damage to the hearing of the young people only

D．common sounds at home are not harmful to the ear

2．This passage suggests that one’s hearing________．

A．will be damaged even if he has heard a loud noise for only little more than one second

B．will be damaged even if he has heard a loud noise less than one second

C．will not be damaged if he has heard a loud noise for only little more than one second

D．will not be damaged if he has little more than one second to get ready

3．One conclusion you can draw from the passage is that aspirin________．

A．makes hearing damage from loud noise worse

B．should never be taken more than four grams

C．can damage one’s hearing when it is given more than four grams daily

D．always increases hearing loss by two times

4．Millions of Americans are in danger of suffering hearing loss because they__________．

A．take too much aspirin            

B．often take air trips

C．like listening to loud music       

D．have too much loud noises at home and at work

5．The American scientist did his experiment in order to find ________．

A．how much aspirin would affect a person’s hearing

B．how much aspirin should be given in the treatment of the patients with hearing damage from loud noise

C．whether aspirin would increase the temporary hearing damage from loud noises

D．whether the people who had hearing damage should use aspirin

关于需求，英国学者布赖德肖归纳总结出四种类型，分别是规范性的需求、感觉性需求、表达性需求和比较性的需求，下列选项哪个是表达性需求( )。

A．民政部规定，每个街道办事处都要建一个1000平方米左右的社区服务中心

B．社工在社区中调查发现大部分居民认为社区治安不好

C．社区居委会通过建议信的形式向社区警务室反映社区治安问题

D．社工发现，情况基本相同的甲乙两个相邻的社区，甲社区为低保户提供了子女免费接受课程辅导，乙社区低保户却没有，乙社区低保户也非常希望获得这个服务

E．专家认为在每一个社区中心应配备相应的就业、社会保障、计生服务等项目

何谓春温？其诊断要点是什么？它是怎样形成的？