NJ07型列车单弓运行时由于列车只有三个VVVF牵引逆变器箱工作,启动力矩相对较小,

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问题:

NJ07型列车单弓运行时由于列车只有三个VVVF牵引逆变器箱工作,启动力矩相对较小,动车时需提供较大的级位输出。列车单弓运行时,当列车载客较多或(),需将DCH置最大牵引位动车。

考点:地铁安全知识竞赛南京宁天线乘务知识南京宁天线乘务知识题库
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无创通气的缺点是()

A.仅适于轻度呼吸衰竭病人

B.只能施行辅助通气功能,不能完全代替自主呼吸

C.痰液引流不好

D.胃肠胀气

E.难以保持密闭或引起面部损伤

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Statistics from China (1) be mind boggling: 1.2 billion (2) , 1.73 trillion cigarettes smoked in a year, 7,000 different (3) of woody plants. But amid all of these staggering sums, one factoid stands (4) for both its audacious size and for what it says about China’s future: there are 630 million Chinese under the age of 24. That’s a lot of (5) energy to burn. Materialism may be the (6) preoccupation among China’s young people these days, but just beneath the surface lies a feeling (7) wounded nationalist pride and an ever-deepening spiritual hunger. It isn’t clear where China’s young people are headed. But this is a generation that, by its (8) size and certain talents, will (9) the world’s destiny.
Here’s another sobering statistic: this is Terry McCarthy’s 22nd, and final, cover (10) for TIME Asia-he’s leaving the region (11) three years to become TIME’s Los Angeles (12) chief. McCarthy, who has indefatigably crisscrossed Asia out of his twin bases of Hong Kong and Shanghai, was the main driver (13) this week’s superb special report on young China. He developed the story list, guided much (14) the reporting
and wrote some of the articles. All (15) planning a swank black-tie masked ball last weekend in Shanghai. "I was (16) by the willingness of individual Chinese to write for us or talk about their (17) ," McCarthy says about the special (18) . "These are the guys (19) are going to be running the country in 20 (20) ." If we’re lucky, McCarthy will be back in the region long before then.

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生殖细胞肿瘤不包括

A.生殖细胞瘤

B.畸胎瘤

C.脂肪瘤

D.绒毛膜上皮癌

E.内胚窦肿瘤

题型:填空题

甲沟发炎有妙法治疗吗?

题型:填空题

符合其他条件,具有舰艇长或部门长等工作经历的,无舰艇管理专业知识的也可担任海警支队长。

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