烧结返矿中存在一定的()。

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问题:

烧结返矿中存在一定的()。

考点:高炉原料工高炉原料工题库
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下列句子中加粗的成语运用正确的一项是[ ]

A.校园里传来了骇人听闻的消息,王刚作文竞赛获得了全国一等奖。

B.他怒不可遏地扬起手往桌子一拍,霍地站了起来。

C.提问要讲究艺术性,太容易不行,难得让学生不屑置辩地不行。

D.班会上,班主任长此以往地表扬了拾金不昧的李明同学。

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无名氏隐居杭州开始潜心创作的作品是()

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男性,78岁。长期下腰部疼痛,间歇性跛行,行走困难,但骑车自如。最可能的诊断是()。

A.腰椎管狭窄症

B.骨质疏松症

C.腰椎间盘突出症

D.骨质增生症

E.梨状肌综合征

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某股份有限公司依照法定程序设立,根据法律规定,该公司取得民事主体资格的日期应以下列哪一个为准

A.公司成立公告发布之日

B.公司创立大会召开之日

C.公司营业执照签发之日

D.公司批准证书下达之日

题型:填空题

High school dropouts earn an average of $9,000 less per year than graduates. Now a new study dispels a common belief why they quit. It’s much more basic than flunking out.
Society tends to think of high school dropouts as kids who just can’t cut it. They are lazy, and perhaps not too bright. So researchers were surprised when they asked more than 450 kids who quit school about why they left.
"The vast majority actually had passing grades and they were confident that they could have graduated from high school. " John Bridgeland, the executive researcher said. About 1million teens leave school each year. Only about half of African American and Hispanic student will receive a diploma, and actually all dropouts come to regret their decision. So, if failing grades don’t explain why these kids quit, what does Again, John Bridgeland: "The most dependable finding was that they were bored. " "They found classes uninteresting; they weren’t inspired or motivated. They didn’t see any direct connection between what they were learning in the classroom to their own lives, or to their career aspirations. "
The study found that most teens who do drop out wait until they turn sixteen, which happens to be the age at which most states allow students to quit. In the US, only one state, New Mexico, has a law requiring teenagers to stay in high school until they graduate. Only four states: California, Tennessee, Texas and Utah, plus the District of Columbia, require school attendance until age 18, no exceptions, another researcher, says raising the compulsory attendance age may be one way to keep more kids in school.
"As these dropouts look hack, they realize they’ve made a mistake. And anything that sort of gives these people an extra push to stick it out and it through to the end, is probably helpful measure. "
New Hampshire may be the next state to raise its school attendance age to 18. But critics say that forcing the students unwilling to continue their studies to stay in school misses the point—the need for reform. It’s been called for to reinvent high school education to make it more challenging and relevant, and to ensure that kids who do stick it out receive a diploma that actually means something.

From the passage, we can infer the following EXCEPT that ______.

A.the grades of most dropouts at school were acceptable
B.about 500,000 high school dropouts are black and Spanish
C.classes don’t appeal to dropouts
D.on average dropouts cannot get good jobs

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