沉管法修建水下隧道时,管节下沉过程一般分为三个阶段,以下属于的是()。A.水建的控制

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问题:

沉管法修建水下隧道时,管节下沉过程一般分为三个阶段,以下属于的是()。

A.水建的控制 

B.浮运停止 

C.精确就位

考点:地铁安全知识竞赛地铁车站和区间暗挖安全地铁车站和区间暗挖安全题库
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小儿遗尿的分证、治法、方药。

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因特网的主要功能是( )。

A.玩游戏

B.下载资料

C.传递营销信息

D.远程控制

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暑假期间淄博市某学校初中二年级地理兴趣小组的学生赴如图所示区域进行了一次“红色之旅”和“自然生态之旅”.

第一站(1)从济南出发乘车至全国著名的五大革命圣地之一的西柏坡.西柏坡地处A______山脉.该山脉西侧为______省,东侧为______地形区.

第二站(2)驱车前往壶口瀑布.亲眼目睹黄河奔腾咆哮、浊浪排空的气度.黄河在流经______地形区后泥沙含量大增,主要原是:______;______;______等.

第三站(3)从延安南行至陕西省省会B______,它位于黄河支流______附近,往西北行进,进入C区,本区最主要的少数民族是______.

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在下列哪种情况下,病人不适合脱离呼吸机:()

A.咳嗽反射活跃

B.自主呼吸活跃

C.体温未恢复正常

D.自主呼吸不规则

E.CPAP下血气分析报告正常

题型: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.

(33)()

A.sat

B.lay

C.went

D.rode

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