（）年，美国约瑟夫.默雷首次成功地进行了第一例异体人类肾脏移植手术。
A.1953
B.1954
C.1955
D.1956
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| 阅读理解。 阅读下面短文，根据所读内容在表格中的空白处填入适当单词。注意：每个空格只填一个单词。 | ||||||||||||||||||
| Nowadays more and more people are concerned about their health, but how to keep healthy? Different people may give different answers to this question. In my opinion, it is essential to do the following. First, it is absolutely necessary to take some exercise at regular time every day. Research shows that getting plenty of exercise can make the heart beat faster and the lungs work harder. This strengthens the heart, reduces the chance of heart attack, and helps lower blood pressure. That's why more and more people are becoming active in various kinds of sports and exercise. Every morning many people get up early and take much exercise. Some play ball games while others run, jog, walk or dance to music. In the afternoon, there are also many people keen on sports. Through sports and exercise, people become healthier and stronger. Medical researchers have proved that what people eat affects their health. They advise people to eat more fruit and vegetables and less meat such as beef and pork because meat contains more fat than poultry (家禽) and fish. Fat can build up in the arteries (动脉), block the flow of blood, and cause a heart attack or stroke (中风). Getting rid of bad habits like smoking and drinking alcohol is also an important way to keep healthy. Smoking and drinking alcohol injure one's health a great deal, and therefore should be given up. Unfortunately few people follow this advice.
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以下不属于有限空间作业者职责的选项是（）
A.接受有限空间作业安全生产培训；
B.遵守有限空间作业安全操作规程；
C.正确使用有限空间作业安全设施与个人防护用品；
D.进行有效的操作作业、报警、撤离等信息沟通
以怪石、奇松、云海、温泉四绝而闻名海内外的是（）。
A．福建武夷LLI
B．山东泰山
C．安徽黄
D．江西龙虎山
是否采用计划性风险自留对策，应从费用、期望损失、( )等方面与工程保险比较后才能得出结论。
A．风险概率、机会成本、服务质量
B．风险概率、机会成本、税收
C．机会成本、服务质量、税收
D．服务质量、税收、风险概率
交通运输安全标准是（）的必要条件。（）
A、贯彻交通运输安全法律法规
B、交通运输市场准入
C、交通运输安全评价
D、交通运输行业安全生产监管监察