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问题 单项选择题

在一间宾馆的一层的同一侧恰好连续并排着七所房间(A—7)，每所房间住着一个房客。这七个房客是：韩国人，英国人，美国人，日本人，德国人，法国人，瑞典人．七个房客由l一7排列符合下列条件：瑞典人不住在这排房间的l号，也不住在这间宾馆的7号韩国人住在C号；美国人与韩国人相邻；法国人住在韩国人的房间号大于美国人，并且小于英国人

如果德国人的房问号大于美国人，那么以下哪一项必然是真的

A．韩国人房间号大于美国人

B．韩国人房间号小于瑞典人

C．德国人房间号小于法国人

D．德国人房间号小于英国人

答案

参考答案：A

解析：根据上面方法并保证韩国人在第四．可以推出答案．．

单项选择题

环烯醚萜苷易与某些试剂产生颜色反应，是由于分子结构中有

A．双键

B．半缩醛结构

C．糖残基

D．甲基

E．醇羟基
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填空题

Tragedies have a way of making people rethink their (1) and find a new focus. They make people think about what a society needs in order to (2) . The notion of doing something to take control of society or of our fate as humans might be dated back to ancient times of the (3) . Now, in the early 21st century, " social (4) " are trying to take back some (5) over society’s direction once again. A social inventor is not necessarily a social (6) , a social (7) or someone who works in a (8) industry or invents new (9) and consumer products. A social inventor is using the power of (10) thinking, to come up with ideas for (11) in certain communities or sections of society. They have a vision of a (12) world and create new systems or practices. Their ideas may seem (13) or impossible. They are usually quite (14) people. But some of these creative thinkers have (15) and quietly changed the way we live. Social inventions do not have to be (16) . Sometimes they are new (17) for neighborhoods or communities, or even very (18) ideas. The idea of social inventions has become so popular in recent years. It shows how much people desire to make a (19) in our society and not remain (20) .

Tragedies have a way of making people rethink their (1) and find a new focus. They make people think about what a society needs in order to (2) . The notion of doing something to take control of society or of our fate as humans might be dated back to ancient times of the (3) . Now, in the early 21st century, " social (4) " are trying to take back some (5) over society’s direction once again. A social inventor is not necessarily a social (6) , a social (7) or someone who works in a (8) industry or invents new (9) and consumer products. A social inventor is using the power of (10) thinking, to come up with ideas for (11) in certain communities or sections of society. They have a vision of a (12) world and create new systems or practices. Their ideas may seem (13) or impossible. They are usually quite (14) people. But some of these creative thinkers have (15) and quietly changed the way we live. Social inventions do not have to be (16) . Sometimes they are new (17) for neighborhoods or communities, or even very (18) ideas. The idea of social inventions has become so popular in recent years. It shows how much people desire to make a (19) in our society and not remain (20) .
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