下列工作场所，照明光源可选用白炽灯的是( )。 A．需要事故照明的场所； B．需防

瑞替普酶与二代溶栓酶相比，具有的作用优势有（）。

A.血浆半衰期长，栓塞开通率高，给药方便

B.具有较强的、特异的纤维蛋白选择性，可与纤维蛋白结合，迅速产生对纤溶酶原激活的催化作用

C.给药较方便，可以为抢救患者赢得时间

D.全身纤溶活性小于链激酶，但大于阿替普酶

E.治疗时间窗宽，溶栓效果好且安全

A recent study conducted by the Pine Street Foundation showed that a dog’s nose may have the ability to detect cancer. A dog’s nose, which was the “medical device” used as part of the research, is believed to be among the world’s most powerful olfactory(嗅觉的) sensors. The study was conducted with 169 subjects 55 of which had been diagnosed as having lung cancer, 31 have breast cancer and 83 control subjects——people without cancer. During the study, five professionally trained scent dogs were used to distinguish between the breath samples of cancer patients and those who were healthy. With an average of 90% accuracy, the research was deemed a success.

The Pine Street Foundation conducted its research on the belief that cancer cells give off a different type of metabolic(新陈代谢) waste product than normal cells. According to the study, the difference is so great that it can be detected by a dog’s sense of smell, including both early and late stages of the disease.

In the conclusion of the study the Pine Street Foundation said that even ordinary dogs may be trained to identify the presence of cancer with only a breath sample. The organization also said that dogs can recognize the disease with astonishing amount accuracy and, finally, that the dog’s detection was not hindered(妨碍) by the presence of age, smoking or stage of cancer.

The Pine Street Foundation plans to continue their research and is currently seeking funding to launch new studies.

小题1:If we want to add several different detecting examples to the passage, we should write them

__________.

A．between paragraph 1 and paragraph 2

B．between paragraph 2 and paragraph 3

C．between paragraph 3 and paragraph 4

D．before paragraph 1 or after paragraph 4小题2:The best title for this passage might be ______.

A．Dogs may smell cancer

B．Why dogs can smell cancer

C．A Study on dogs’ special ability

D．A study on breast cancer小题3:Dogs can smell cancer because ____________.

A．they can detect faster than man

B．their sense of smell is very sensitive

C．dogs metabolize the food slowly

D．patients give off bad smell小题4:People can know from the passage _________.

A．all dogs can be used to smell cancer

B．it’s not easy to find out cancer in the early stage

C．most of the research experiments are successful

D．dogs detect cancer by breathing and feeling

辅酶与辅基的主要区别是（）。

A.与酶蛋白结合的牢固程度不同

B.化学本质不同

C.分子大小不同

D.催化功能不同

根据产品( )条件的规定，对装配完毕的电机，应逐台作简单的试验，称为检查试验。

A．技术

B．业务

C．学习

D．生产

居民储蓄存款是居民可支配收入扣除消费支出以后形成的。______