动脉导管未闭在新生儿期常常仅听到收缩期杂音是由于A.主、肺动脉压力差在收缩期不显著

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问题:

动脉导管未闭在新生儿期常常仅听到收缩期杂音是由于

A.主、肺动脉压力差在收缩期不显著

B.主、肺动脉压力差在舒张期不显著

C.主、肺动脉间无压力差

D.肺动脉与肺静脉之间压力差不显著

E.二尖瓣相对关闭不全

考点:口腔执业助理医师口腔执业助理医师2005年真题
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关于我国山区的叙述,正确的是(  )

A.我国山区多分布在东部地区

B.山区在发展旅游、采矿和工农业等方面优势较大

C.发展山区经济时,基础设施建设难度不大

D.在开发利用山区的时候,要特别注意生态环境建设

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论述物流成本管理的内涵及如何降低物流成本。

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A common assumption about the private sector of education is that it caters only to the elite. (31) recent research points in the opposite direction. If we want to help some of most (32) group in society, then encouraging deeper private sector (33) is likely to be the best way forward.
Several developments are (34) in India, all of which involve the private education sector meeting the (35) of the poor in distinct ways. (36) India is not unique in this respect—similar phenomena are happening all over the developing world.
As a point of departure, how do government schools serve the poor Usefully, the government sponsored Public Report on Basic Education in India from 1999 paints a very (37) picture of the" (38) "of the government schools for the poor. When researchers (39) unannounced on their random sample of the schools, only 53% had any "teaching activity" going on. (40) , the team not- ed that the (41) of teaching standards has nothing to do (42) disempowered teachers, but instead could be (43) "plain negligence". They noted "several cases of irresponsible teachers (44) a school closed for months at a time".
But is there any (45) to these schools Sorely no one else can do better than government (46) the resources available As it happens, the Report pointed to private schools that were serving the poor and (47) that such problems were not found in these schools. Most parents believed that private schools were successful because they were more accountable: "the teachers are account- able to the manager who can fire them, and, (48) him or her, to the (49) who can withdraw their children." Such accountability was not present in the government schools, and "this contrast is (50) with crystal clarity by vast majority of parents.\

A.desolate

B.bleak

C.ingenious

D.delicate

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ICP光谱仪常用的检测器有()和()两种。

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会计报表是用于综合反映企业某一特定日期财务状况和经营成果、现金流量的书面文件,是企业经营活动的缩影。 ( )

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