[单选题]【单选题】检修前，应检查检修对象及受影响对象的运行状态,并-我要搜题网

[填空题]并联风机与单一风机性能相比(同型号），并联转速为（）。

[简答题]简述查阅文献的目的。

[多选题]事故隐患泛指生产系统中可导致事故发生的()
A.人的不安全行为
B.自然灾害
C.管理上的缺陷
D.物的不安全状态

[多选题]特种乘车证包括（）。
A.全国铁路通用乘车证
B.邮局押运人员免费乘车证
C.中华人员共和国铁路免费乘车证
D.口岸站的海关、边防军、银行使用的往返免费乘车书面证明

[不定项选择题]共用题干 Stomach Ulcer
Stomach ulcers are the cause of severe pain for many people.Doctors have been able to help lessen the pain of ulcers.They could not cure them.Now doctors have discovered a cause of ulcers.This means they may have found a way to cure people who suffer from the stomach pain.Studies show that ten percent of the population will develop an ulcer at some time in their life.So a possible cure is good news for many people.
Ulcers are wounds in the stomach that are similar to small cuts or tears.These wounds can harm the tissue in the stomach,the pipe that carries the food to the stomach or parts of the small intestines.Fluids in the stomach then increase the pain of an ulcer.How does a person know he or she has an ulcer?Doctors say most people with ulcers feel a burning pain in their chest or stomach.This pain often is called heart burn.It usually happens before eating or during the night.It causes some people to lose their desire to eat,or they are unable to keep food in their stomachs.Doctors believed that ulcers were caused by unusually strong stomach fluids,which damaged stomach tissue.Now they have discovered that most ulcers are caused by a bacterial organism called Hillico Bactor Pilorie or H.Pillorie. H.Pillorie bacteria are what make stomach produce extra stomach fluid.Doctors found that they can kill the bacteria with medicines called antibiotics.Health experts say the discovery of a cure for ulcers can save thousands of millions of dollars in medical costs.They also believe curing ui- cers will reduce the number of people who develop stomach cancer.The number of people with stomach cancer is very high in Japan,Southeast Asia and parts of Africa.
Doctors say a person is more likely to get an ulcer if his or her family has had one.In fact a person with the family history of ulcers is three times more likely to get one than other peo-ple.There are ways people can protect themselves from developing an ulcer.Doctors say it is more important to reduce the amount of strong fluids in the stomach.To do this,doctors say,people should not smoke cigarettes or drink alcohol.And they say people should reduce tension in their lives. In the past,doctors could not do anything about stomach ulcers.
A.Right
B.Wrong
C.Not mentioned

[单选题]【单选题】 检修前，应检查检修对象及受影响对象的运行状态,并核对（ ）是否一致。A. 运行方式与检修方案B. 检修方式与检修方案C. 运行方式与检修方式D. 运行方案与检修方式

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[单选题]【单选题】检修前，应检查检修对象及受影响对象的运行状态,并核对（）是否一致。
A. 运行方式与检修方案
B. 检修方式与检修方案
C. 运行方式与检修方式
D. 运行方案与检修方式