问题 单项选择题 A1型题

重型病毒性肝炎出血的最主要原因是()。

A.血小板减少

B.毛细血管脆性增加

C.凝血因子合成减少

D.肝素样物质增多

E.骨髓造血功能受抑制

答案

参考答案:C

解析:重型病毒性肝炎的出血原因。重型病毒性肝炎时有严重的肝功能异常,肝是许多凝血因子制造的场所,因此,重症病毒性肝炎时凝血因子合成必然减少,因而成为其出血的主要原因。其他原因可能也与出血有关,但均不是主要原因。

阅读理解

阅读下面短文并回答问题,然后将答案写到答题卡相应的位置上(请注意问题后的词数要求)。

[1]Global difference in intelligence is a sensitive topic, long filled with a large number of different opinions. But recent data has indeed shown cognitive (认知的) ability to be higher in some countries than in others. What's more, IQ scores have risen as nations develop --- a phenomenon known as the "Flynn effect". Many causes have been put forward for both the intelligence difference and the Flynn effect, including education, income, and even non-agricultural labor. Now, a new study from researchers at the University of New Mexico offers another interesting theory:intelligence may be linked to infectious-disease rates.

[2]The brain, say author Christopher Eppig and his colleagues, is the "most costly organ in the human body". Brainpower consumes almost up to 90 percent of a newborn's energy. It's clear that if something affects energy intake while the brain is growing, the impact could be long and serious. And for vast parts of the globe, the biggest threat to a child's body -- and therefore brain ---is parasitic (由寄生虫引起的) infection. These illnesses threaten brain development __________. They can directly attack live tissue, which the body must then try every means to replace. They can invade the digestive pipe and block nutritional intake. They can rob the body's cells for their own reproduction. And then there's the energy channeled (输送) to the immune system to fight the infection.

[3] Using data on national "disease burdens" (life years lost due to infectious diseases) and average intelligence scores, the authors found they are closely associated. The countries with the lowest average IQ scores have the highest disease burdens without exception. On the contrary, nations with low disease burdens top the IQ list.

[4]If the study holds water, it could be revolutionary for our understanding of the still-confusing variation in national intelligence scores.

小题1:What is the main idea of the text? (no more than 10 words)

____________________________________________________________________

小题2:Complete the following statement with proper words. (no more than 4 words)

Those countries that have the___________ are always at the bottom of the IQ list.

小题3:Fill in the blank in Paragraph 2 with proper words. (no more than 5 words)

                                                                     

小题4:What can cause intelligence difference? (no more than 8 words)

                                                                     

小题5:What does the word "they" (Line 3, Paragraph 3) probably refer to? (no more

than 8 words)

                                                                   

  阅读下列材料,问答问题。

  材料一

图一 新航路开辟示意图
图二 踏入美洲的西班牙殖民者正在进行掠夺

  材料二 有人描述20世妃初世界经济联系日益密切的情况时指出,伦敦的居民可以在1911年的某天,打电话订购世界上任何产品,想订购多少悉听尊便,同时,他也可以把自己的财富投资到地球任何角落的自然资源开发和新的冒险事业中;他可以利用廉价和舒适的交通工具,立即动身去任何国家。  材料三 20世纪90年代以来,经济全球化成为世界经济发展的主要趋势之一。随着经济全球化的深入发展,反全球化运动也开始出现。1999年世贸组织西雅图会议期间,发生了震惊世界的反全球化运动,并导致会议无果而终。在此后的一些重大国际会议期间,都爆发了反全球化的示威和抗议运动。 (1)材料一反映的历史事件对世界市场的形成各有何影响?    _____________________________________________________________________________________    _____________________________________________________________________________________(2)材料二反映了20世纪初世界经济发展形成了怎样的局面?促成这一局面最终形成的途径有哪些?    _____________________________________________________________________________________    _____________________________________________________________________________________(3)你认为应如何应对经济全球化运动?

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