如图(a)、(b)两图分别表示比较自行车和摩托车运动快慢的两种方法。 (1)图

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问题:

如图(a)、(b)两图分别表示比较自行车和摩托车运动快慢的两种方法。

(1)图(a)表明:______________________________

(2)图(b)表明:_____________________________

考点:比较快慢的方法
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如何对吸氧患者进行用氧指导?

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下列表示对应化学反应的离子方程式正确的是

A.向铁粉中加入足量稀硝酸:2Fe+6H+=2Fe3+3H2

B.向AlCl3溶液中滴加浓氨水至过量:Al3++4OH=AlO2+2H2O

C.向NaIO3溶液中加入适量NaHSO3溶液:IO3+3HSO3=I+3SO42+3H+

D.向NH4HCO3溶液中滴加过量NaOH溶液:NH4++HCO3+2OH=CO32+NH3·H2O

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液压舵机停用部分转舵油缸,通知驾驶台()

A.转舵速度变慢

B.避免用大舵角

C.舵机可能过载

D.A和B

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通常TIA完全缓解的时间在()

A.1周内

B.3~4天

C.24小时内

D.12小时内

E.3小时内

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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 part in the fourth paragraph suggests that my sister______.

A.is happy to clean windows

B.loves to clean used windows

C.is fond of cleaning used windows

D.likes to clean windows as my mother did

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