女,16岁,双下肢水肿,面部皮疹1个月,诊断为系统性红斑狼疮,问下列哪一种抗体的特异

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问题:

女,16岁,双下肢水肿,面部皮疹1个月,诊断为系统性红斑狼疮,问下列哪一种抗体的特异性最高

A.抗核抗体
B.抗着丝点抗体
C.抗Sm抗体
D.抗RNP抗体

考点:普通考研西医综合西医综合
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Are you going to the concert ______ on Friday evening in the people’s Square?

A.to hold

B.to be holding

C.to have held

D.to be held

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在物理变化中,分子本身______,在化学变化中,分子本身______.(以上填改变或不改变)

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芜湖“三刀”素有“削铁如泥”之美称.从物理学的角度分析,这说明刀具材料的______比铁大;刀具的刀口磨得很锋利.主要是为了减小受力面积,增大______:刀柄上刻有花纹,是为了______.

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探采结合孔

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The percentage of immigrants (including those unlawfully present) in the United States has been creeping upward for years. At 12.6 percent, it is now higher than at any point since the mid 1920s. We are not about to go back to the days when Congress openly worried about inferior races polluting America’s bloodstream. But once again we are wondering whether we have too many of the wrong sort of newcomers. Their loudest cites argue that the new wave of immigrants cannot, and indeed do not want to, fit in as previous generations did.

We now know that these racist views were wrong. In time, Italians, Romanians and members of other so called inferior races became exemplary Americans and contributed greatly, in ways too numerous to detail, to the building of this magnificent nation. There is no reason why these new immigrants should not have the same success.

Although children of Mexican immigrants do better, in terms of educational and professional attainment, than their parents, UCLA sociologist Edward Telles has found that the gains don’t continue. Indeed, the fourth generation is marginally worse off than the third. James Jackson, of the University of Michigan, has found a similar rend among black Caribbean immigrants, Telles fears that Mexican Americans may be fated to follow in the footsteps of American blacks—that large parts of the community may become mired in a seemingly state of poverty and underachievement. Like African Americans, Mexican Americans are increasingly relegated to (降入) segregated, substandard schools, and their dropout rate is the highest for any ethnic group in the country.

We have learned much about the foolish idea of excluding people on the presumption of the ethnic/racial inferiority. But what we have not yet learned is how to make the process of Americanization work for all. I am not talking about requiring people to learn English or to adopt American ways; those things happen pretty much on their own, but as arguments about immigration hear up the campaign trail, we also ought to ask some broader question about assimilation, about how to ensure that people, once outsiders, don’t forever remain marginalized within these shores.

That is a much larger question than what should happen with undocumented workers, or how best to secure the border, and it is one that affects not only newcomers but groups that have been here for generations. It will have more impact on our future than where we decide to set the admissions bar for the latest ware of would be Americans. And it would be nice if we finally got the answer right.

What does the author think of the new immigrants()

A.They will be a dynamic work force in the US.

B.They can do just as well as their predecessors.

C.They will be very disappointed on the new land.

D.They may find it hard to fit into the mainstream.

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