转炉出钢时应采取()。

题型:填空题

问题:

转炉出钢时应采取()。

考点:炉外精炼工初级炉外精炼工初级炉外精炼工题库
题型:填空题

男童,8月龄。高热6天,伴咳嗽气促,R60次/分,精神萎靡,面色苍白,左肺背叩诊浊,偶闻少许中细湿啰音,HR178次/分。胸片示左上肺大片阴影伴肺气肿,血WBC9.6×109/L,中性粒细胞0.56。

该患儿病情加重,R88次/分,不规则,喘憋,肺部大量细湿啰音,发绀明显,经导管吸氧无改善,进一步应做何种检查()。

A.复查血常规

B.动脉血气分析

C.胸部X线摄片

D.胸部B型超声

E.胸腔CT扫描

题型:填空题

我国对北美出口货物通常所使用的运输单据是( )。

A.铁路运单正本

B.承运货物收据

C.海运提单

D.航空运单

题型:填空题

The new studies show that fewer than half of the 9th graders in many of the nation’s largest cities, can ever graduate. The studies clearly show that the dropout rate isn’t dropping. And, in particular, the dropout rate isn’t dropping for poor and minority students.

Amazingly, though so many regret the rising dropout rate, our schools continue to lack formal plans--or any plans--to teach students motivation(动机). Most schools have no game plan to ensure that students understand that school will be completely necessary. Schools expect youth and children to act as though school is important, but they never teach them to believe that.

Years ago, families ensured that the offspring recognized the value of school. But in many modern families, the children may fail to recognize the importance of school life just because these families may actually tell the child that school is not important. Since many families are not motivating their children to be interested students, youth professionals, like teachers may need to provide this training. Otherwise, it is likely the dropout rate will continue not to drop, but only worsen.

Here are some strategies to convince even the most apathetic (无动于衷的) students that they must stay in school.

Ask students if they will ever need to work: The world has changed. 100 years ago, factory work was the booming job, and it required no education. Today, factories are increasingly automated. Most computer-related jobs require education and at least a high school diploma.

Ask students which century they will be prepared for: In 1900, the most common jobs were farm laborer and domestic servant—education not needed. Now, the most common jobs are office and sales worker—education and diploma usually needed. An amazing 6 out of 10 people today work in a store or office.

Ask students to devise a way that the employee could be replaced. For example, the coming trend in fast food is to use computers rather than people to run the restaurant. A prototype is apparently already being tested. The students should discover that most jobs that lack education and diploma requirements may be ripe for automation.

小题1: What does the underlined part mean in Paragraph1?

A.Few students can afford to go to school in large cities.

B.A large number of the 9th grades can graduate now.

C.There are still quite a few 9th graders leaving school early.

D.Most schools in large cities have fewer and fewer students.小题2:Without the help of youth professionals,_____.

A.more and more families will gradually recognize the value of school.

B.some parents will be more convinced of their children’s future.

C.it is likely that the dropout rate in schools won’t continue to drop.

D.the schools will make proper plans to solve the problems with dropout.小题3:The author takes factory work for example mainly to ______.

A.tell us that many jobs requires certain education in the past

B.show that there are more factory work and employment in modern society

C.show that employment in the computer field grows at a high rate

D.emphasize that modern jobs require education and schools are necessary小题4:It can be inferred that______.

A.both schools and families should answer for the high dropout rate

B.many new jobs don’t need children’s high school diploma

C.working in a store doesn’t require a high school diploma

D.most schools are ready to help students recognize the importance of study小题5: If students play the “Replace Me” game, the result would be “______”.

A.They will know that they can ‘always’ do without a diploma

B.More of them will drop out early to go to work

C.They will discover that lack education is a disadvantage in choosing jobs

D.They will become better at using computers to hunt for a job

题型:填空题

患者男,45岁,LVEF25%,扩张型心肌病,NYHA分级Ⅲ级。

常规治疗疗效不佳,你准备加用螺内酯,你向患者解释:()

A.在常规治疗的基础上加用螺内酯,并不能降低病死率和致残率

B.在常规治疗的基础上加用螺内酯,仅降低心力衰竭的住院率,不改善NYHA分级

C.在常规治疗的基础上加用螺内酯可降低重症心力衰竭患者的病死率和住院率

D.螺内酯获益的人群是没有进行心力衰竭常规治疗的患者

E.在常规治疗的基础上加用螺内酯,不仅降低心力衰竭的住院率,还可改善NYHA分极

题型:填空题

下面关系函数依赖的传述中,不正确的是______。

A.若XY->Z,则X->Z,Y->Z

B.若X->Y,Y->Z,则X->YZ

C.若X->Y,Z包含Y,则X->Z

D.若X->Y,Y->Z,则X->Z

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