题目

在核反应堆中，是靠熔化的钠来传递核燃烧产生的热量的。抽动液态钠的“泵”有传动部分不允许和钠接触，因此常使用一种称为“电磁泵”的机械。如图所示为这种泵的结构，N、S为磁铁的两极，C为在磁场中的耐热导管，熔融的钠从其中流过，v为钠的流动方向，要使钠液加速，加在导管中钠液的电流方向应为 A.由下流向上       B.由上流向下      C.逆着v的方向            D.顺着v的方向请阅读以下相关的职业或兴趣爱好:A．The person works in a hospital emergency room. His/her job is to assist doctors to rescue patients who are seriously ill.B．The person likes sports activities the most. For him/her, having sports activities is very interesting.C．The person works for himself/herself at home. He/She writes for others. D．The person doesn’t like other things such as gardening. But he/she really likes music, especially classical music.E.     The person likes collecting all kinds of things, such as baseball cards and stamps.F.     Many people may like collecting things, such as collecting cards or stamps. But he/she likes reading very much.请阅读以下个人信息，然后匹配与他们相关的职业或兴趣爱好：1. Mary: I never used to like stamp collecting. I read almost everything I can: books, magazines, newspapers. I go to the public library about twice a week. If you’d like to send me something, maybe books are my favorite.2. Tom: My wife says I should take up gardening. We have a big garden and she loves working in it. But the truth is, it bores me. My friends and my wife think I’m really boring, because I’m always listening to music. I go to concerts all the time. I love Mozart and all that classical staff.3. Mike: I don’t really like video games and that sort of things. I prefer being outdoors, hiking or playing sports. I always go out with my family playing baseball and stuff all the time. I think most sports are pretty interesting.4. Lisa: I’m a free writer, and a lot of people think my job is easier because I don’t have to go to the office every day. And I don’t have to deal with office politics. But, you know, my job is very hard. I have to be very organized and much disciplined. And pretty self-motivated. And when I have a problem, there is no one around to help me.5. Victor: My life is very stressful. In my working place, everyone is in a hurry and under tremendous pressure. The doctors are demanding, and there is always too much to do to save a dying patient.