信息检索效果评价的指标有（）A、查全率 B、漏检率 C、查准率 D、误检率

2005年6月，绿色和平和世界自然基金会等环保组织警告说，鲨鱼是地球上遭到过度捕杀的物种之一。他们要求迪斯尼放弃损害鲨鱼、破坏生态的奢侈大餐，以实际行动提高公众保护动物和环境的意识。在环保组织的压力下，全球娱乐巨头--迪斯尼公司决定将鱼翅汤从中国香港迪斯尼乐园的菜单上撤下。上述材料说明[     ]

①要求饭店做菜禁用鱼翅也是遵守有关法律的表现

②我们应该响应这些环保组织的做法，增强环保意识，落实环保行动

③环保组织的做法有利于提高人们的环保意识

④环保组织的做法是抵制中国菜，是故意为难迪斯尼公司

A．①②④

B．②③④

C．①②③

D．①③④

何种情况下，卫生行政部门应当注销注册，收回医师执业证书

患者，女，34岁，已婚。4年前因患子宫肌瘤自然流产1次，现妊娠43d， * * 不时少量下血，腰酸，胎动下坠，口干不欲饮，舌暗红，脉沉弦。其证候是（）。

A.跌仆伤胎

B.气虚

C.肾虚

D.血虚

E.症瘕伤胎

A super drug that could remove Alzheimer’s (老年痴呆症)，heart disease and diabetes (糖尿病) and help people live to 100 is being developed by scientists. Their research is based on the identification of three genes that help prolong lives and prevent diseases which occur in old age. Medically controlling the proteins made by the “ longevity genes” will allow millions to live longer, predicts Dr Nir Barzilai.

Those whose DNA strongly features the three genes are 80 percent less likely to develop Alzheimer’s. The genes also fight against the deadly impact of smoking, poor diet, obesity and lack of exercise.

Already, several laboratories are working on a pill to imitate the benefits of the genes and Dr Barzilai thinks it could be tested within three years. The pill could remove some diseases that damage old age. “ The advantage of finding a gene that involves longevity is that we can develop a drug that will imitate exactly what this gene is doing,” he said.

Of the three longevity genes, two genes increase the production of so-called good cholesterol(胆固醇), which reduces the risk of heart disease. The third prevents diabetes. They were discovered by Dr Barzilai’s team while studying the DNA of 500 Ashkenazi Jews with an average age of 100. The chances of living that long are one in 10,000 but the group, which shared relatively few common ancestors, was 20 times more likely to hit the entury. Dr Barzilai said: “ 30 percent of them were obese or overweight and 30 percent smoked two acks of cigarettes a day for more than 40 years, however they can live to 100.”

But Andrew Ketteringham of the Alzheimer’s Society said: “Alzheimer’s disease, a most common disease, is likely to be caused by a combination of genetic disosition(遗传倾向), lifestyles and life events. Many genes are probably involved.

小题1:Some people are able to live to 100 years because of ______.

A．a magical medicine

B．three special genes

C．good living habits

D．longevity proteins小题2:Why does the discovery of the longevity genes mean a lot?

A．Because it can bring great benefits to scientific labs.

B．Because it can help people change their unhealthy genes

C．Because it helps produce a drug that can make people live longer.

D．Because it will help scientists build up a new branch of biology.小题3: From Paragraph 4 we can infer that ________.

A．longevity genes can create good cholesterol.

B．the volunteers share some common ancestors

C．bad habits are likely to have no effect on the volunteers

D．longevity genes protect the volunteers against bad habits小题4:What is Andrew Ketteringham’s attitude toward the study?

A．Positive

B．Negative

C．Critical

D．Cautious

检修闸门一般布置在（）。

A、进口处

B、出口处

C、孔身段

D、泄水孔的任一断面均可