抗原呈递细胞表面的协同刺激分子包括（） A.ICAM-1 B.LFA-2 C.LFA

Two United Nations agencies have (36) for more money to supply food to (37) camps in Africa. They say they have had to cut food aid to hundreds of thousands of people. Most are in West Africa and the Great Lakes area. The two agencies say the cuts have created (38) among those (39) . Special feeding programs for young children, (40) women and new mothers have also been reduced. In Sudan, the World Food Program reported a (41) problem: a shortage of airplane (42) at the worst time of year. Aid workers call it the hunger season. The agency says it had to cut in half its (43) food shipments in August to more than one million people in the south. The fuel shortage also affected efforts in the Darfur area in western Sudan. (44) .It follows rain shortages and a locust (蝗虫) invasion last year. (45) . The medical aid group says tens of thousands of children still require immediate assistance. Last week, the World Food Program reported "good progress" in its work in Niger. The aim is to supply food to more than three and one-half million people. (46) . The next harvest in most of Niger is several weeks away.

An estimated 80 percent of American adults think music lessons, though at times boring and challenging in the eyes of some kids, improve children’s ability to learn or their performance in school . They say that the satisfaction for learning to play a new song helps a child express creativity.

Researchers at Harvard University, however, have found that there’s one thing musical training does not do. Samuel Mehr, the leading researcher of the new study, said it is wrong to think that learning to play a musical instrument improves a child’s intellectual development. The evidence comes from studies that measured the mental ability of two groups of 4-year-olds and their parents. One group attended music class; the comparison group went to a class that places importance on the optical arts-arts that can be seen.

“We found no evidence for any advantage on any of these tests for the kids participating in these music classes,” said Mehr.

Samuel Mehr says researchers have carried out many studies in an effort to learn whether musical training can make children smarter. Only one study seems to show a small percentage increase in IQ, intellectual scores among students after one year of music lessons.

He does not believe that IQ is a good measure of a child’s intelligence. Therefore, the researchers in his study compared how well children in the musical training group did on mental processing tasks, then the results were compared to those of children who did not take lessons.

Music lessons may not offer children a fast easy way to gain entry to the best schools later of their life, but the training is still important.

Mr Mehr notes that the works of writer William Shakespeare are not taught , so the children will do better in physics. He says Shakespeare is taught because it is important for cultural reasons.“And I don’t think music needs to be any different than that.”

小题1:What attitude do most American grown-ups have towards music lessons? _________

A．Uninterested

B．Approving

C．Doubtful

D．Uncertain小题2:The underlined word“optical”in Paragraph 2 probably means       .

A．visual

B．colorful

C．traditional

D．serious小题3:According to Samuel Mehr, _________ .

A．many studies show that music training can improve IQ

B．IQ is a good measure of a child’s intelligence

C．music can enable a child to go to a better school

D．music should be taught for cultural reasons小题4:The study shows that       .

A．early music training has negative effects

B．musical lessons should be stopped at school

C．musical training doesn’t improve kids’ intelligence

D．playing musical instrument makes kids more creative

胸骨角

创建交叉表查询，在交叉表行上不止有一个的是( )。

A．行标题

B．列标题

C．行标题、列标题和值

D．值

A公司摄制了电影《一朵奇葩》，公映后广受好评。B公司经A公司授权，将《一朵奇葩》制作成DVD出版发行。C公司经A公司和B公司授权，将《一朵奇葩》上传到网络上供网民付费下载观看，C公司为此设置了相应的技术措施。下述甲、乙、丙、丁擅自实施的行为中，构成侵犯著作权的有哪些？（）

A、甲购买了一个正版《一朵奇葩》DVD，用于在自己经营的长途客车上放映

B、乙购买了十个正版《一朵奇葩》DVD，放在自己经营的书店里用于出租

C、丙避开C公司采取的技术措施免费下载了一份《一朵奇葩》和女友在电脑上欣赏

D、丁电视台未经甲公司同意，将《一朵奇葩》作为节目播出，但D电视台愿意支付费用