酸性焊条施焊时烟尘中的有毒成分主要是锰化物,而碱性焊条所含的有毒成分除锰化物外,还有

题型:判断题

问题:

酸性焊条施焊时烟尘中的有毒成分主要是锰化物,而碱性焊条所含的有毒成分除锰化物外,还有毒性更大的氟化物,对人体伤害更大。

考点:焊工技能考试焊工技能考试题库
题型:判断题

能提示COPD患者的严重度为Ⅳ级的是()

A.DLco=50%

B.FEV1/FVC45%,FEV1140%预计值,体检:双下肢水肿,肝肿大、肝颈静脉回流征阳性

C.FEV1/FVC45%,FEV140%预计值,动脉血气分析(吸氧后):pH7.36,PaO255mmHg,PaCO266mmHg

D.咳嗽、咳痰、活动后气短加重,夜间不能平卧

E.FEV1/FVC45%,FEV1<30%预计值

题型:判断题

读材料一、二,完成下列问题。

材料一:黄河流域图

材料二:黄河不同河段水文站测得的河流含沙量

水文站兰州河口陕县利津
含沙量(千克/立法米)1.196.6737.724.7

(1)读材料一,在兰州西河段、旧孟津附近河段,建有大型水电站,这两个地区能够建设大型水电站的    主要原因是_________________________________________________。(2)结合材料一、二,黄河在流经“”地形区时,含沙量迅速增大,其主要原因是___________    ____________________________________________________ 。该地形区生态问题严重,治理措施中,    采用的生物措施是_____________ 。另外,国家正在这一地形区建设大型能源基地,请据图说明该地    形区的资源优势是___________________ 。 (3)读材料一,旧孟津以下河段,流域面积变得狭窄,并且在开封市附近出现图中所示景观,请简要分    析形成上述现象的原因。     ________________________________________________________________________________________

题型:判断题

* * 口糜烂型小细胞癌,首选治疗是()

A.放射治疗

B.化学治疗

C.手术+放射治疗

D.放射治疗+加温治疗

E.化学治疗+放射治疗

题型:判断题

以下有关刑事责任说法正确的是( )。

A.刑罚分为主刑和附加刑
B.附加刑不能单独适用
C.单位不承担刑事责任
D.管制是附加刑

题型:判断题

How many of us would temp for three years while we waited for the perfect job Not many of us, perhaps. But Wentworth Miller, the "Prison Break" star, said he chose to wait even longer time (1) he found the right job.
"Actually I think it might have been three or four years until I was lucky enough to get guest (2) on TV shows," said Miller, 34, who rose to international stardom (3) to "Prison Break" in 2006. That kind of patience and p will was portrayed in "Prison Break". Miller (4) engineering wizard Michael Scofield, who tries everything to break out of a Chicago (5) with his brother. Miller said he was fond of his character, (6) he said "exists in shades of grey".
Miller comes from a (7) of teachers. He said he didn’t seem fated for a career in the arts, (8) his passion for acting. After (9) from Princeton with an English degree, he moved (10) his parents’ request to Los Angeles to look for a stable life. He started (11) in a little company that made television movies. This (12) simply faxing, filing, walking the boss’ dog and going to the store for the boss’ lunch. Every weekend during the summer, Miller (13) go to the office (14) he didn’t have air-conditioning. "I would hang (15) in the conference room and set up camp and rob the company kitchen," recalled Miller.
(16) , Miller realized he still had questions about his choice. He decided to quit. But the boss said he was making a mistake and offered him a well-paid assistant position. "I eventually (17) that if I did the corporate job, it would be great if I was successful, but I would always wonder about the (18) . If I did the acting and was successful, I would never wonder (19) that job," he explained. He quit and temped (20) many people in the entertainment industry.
Now, he’s a hot star and has people coming up to him at film festivals saying, "Weren’t you the one who (21) to stand by the copy machine "
"That was tough, but I’m glad I have that perspective. Because now I’m at a point (22) big shots laugh at all my jokes and I think, You know, I got coffee for people like you for six years’. So I know what’s (23) , because I’ve seen the other side." But what if, when he was offered the corporate job, there had been more money "It was never about the (24) There’s a kind of excitement that comes along with acting. I can’t find it anywhere else. Even if I had to go back to temping, even if this is not the beginning of an amazing career, I would not (25) making that jum
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