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问题 选择题

下列关于生态系统的叙述，正确的是（　　）

A．包括一切生命物质

B．包括生产者、消费者和分解者

C．包括植物、动物和微生物

D．包括生物成分和非生物成分

答案

A、一切生命物质属于群落，还缺少非生物部分，不能构成生态系统，A不正确；

B、生产者、消费者和分解者，还缺少非生物部分，不能构成生态系统，B不正确；

C、植物、动物和微生物，还缺少非生物部分，不能构成生态系统，C不正确；

D、生态系统包括生物成分和非生物成分，D正确．

故选：D．

单项选择题 A1型题

具有对自己行为应该负道德责任的自觉认识和自我评价能力的是（）

A.护理伦理情感

B.护理伦理良心

C.护理伦理义务

D.护理伦理责任

E.护理伦理荣誉
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单项选择题

Recently, I flew to Las Vegas to attend a meeting. As we were about to arrive, the pilot announced with apology that there would be a slight (16) before setting down. High desert winds had (17) the airport to close all but one runway. He said that we would be (18) the city for a few minutes waiting to (19) . We were also told to remain in our seats meanwhile with our seat belts fastened (20) there might be a few bumps(颠簸). Well, that few minutes turned into about four-five minutes, including a ride that would make a roller coaster(过山车) (21) by comparison. The movement was so fierce that several passengers felt (22) and had to use airsickness bags. As you might guess, that’ s not a good thing to have happen in a(n) (23) space because it only (24) to increase the discomfort of the situation.

About twenty minutes into the adventure, the entire airplane became very (25) There was now a sense of anxiety and fear that could be (26) noticed. Every passenger simply held on for dear life …except one. A (27) was having a good time！ With each bump of the (28) , he would let out a giggle (咯咯地笑)of delight. As I observed this, I (29) that he didn’t know he was supposed to be afraid and worried about his (30) . He neither thought about the past nor about the future. Those are what we gown--ups have learned from (31) . He was (32) the ride because he had not yet been taught to fear it. Having understood this, I took a deep breath and (33) back into my seat, pretending I was (34) on a roller coaster. I smiled for the rest of the flight. I even (35) to giggle once or twice, much to the chagrin(随恼) of the man sitting next to me holding the airsickness bag.

（25）（）

A．quiet

B．hot

C．dirty

D．crowded
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