问题
问答题 简答题
脊椎动物肌肉的特点。
答案
参考答案：
似爬行类，但进一步复杂化。
⑴四肢肌和躯干肌发达；
⑵具有特殊的膈肌；
⑶皮肤肌发达；
⑷咀嚼肌强大。
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脊椎动物肌肉的特点。
参考答案：
似爬行类，但进一步复杂化。
⑴四肢肌和躯干肌发达；
⑵具有特殊的膈肌；
⑶皮肤肌发达；
⑷咀嚼肌强大。
| 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. |
The underlined word "rainbow" in the sixth paragraph refers to______.
A．the rainbow in the sky
B．the stripes on the pavement
C．something imaginative and fun
D．important lessons learned in childhood