题目内容
人的皮肤由表皮、真皮和皮下组织三部分组成。指纹就是表皮上凸起的纹线。由于人的遗传特性，虽然指纹人人都有，但各不相同。据说，全世界70多亿人，还没有发现有两个指纹完全相同的呢。伸出你的手仔细观察，就可以发现指纹也分好几种类型：有同心圆或螺旋形纹线，看上去像水漩涡的，叫斗形纹；有的纹线是一边开口的，就像簸箕似的，叫箕形纹；有的纹像弓一样，叫弓线纹。 这段文字主要谈论______。
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Less than three weeks before a Chinese billionaires" banquet, sponsored by Bill Gates and Warren Buffett on September 29, only two Chinese businessmen have confirmed they are attending. Gates and Buffett initiated a project, " The Giving Pledge" , in June【C1】______at persuading billionaires in the United States to give the【C2】______of their wealth, 50 percent or more, to【C3】______ Although the Microsoft mogul has announced that he would not lobby Chinese billionaires to follow【C4】______, the banquet is turning into a test【C5】______donating to China"s charities,【C6】______the two American billionaires promote philanthropy in the world"s most populous country【C7】______donating personal wealth to charity has yet to become a common【C8】______ A deep-rooted concept among wealthy individuals in China is to leave their【C9】______fortunes to their descendants, which might be a major obstacle【C10】______donations to charity, according to Zhang Yinjun, spokesperson with one of China"s largest charity【C11】______, the China Charity Federation. "If Gates and Buffett"s visit and banquet【C12】______change Chinese billionaire"s concept on the handling of their fortunes, that would be a good start to【C13】______more people to donate to society, " Zhang told Xinhua on Tuesday. " China has a totally【C14】______social condition and environment, so【C15】______or not Chinese billionaires accept Gates" and Buffett"s ideas, will be their personal【C16】______, " Zhang said. Gates" project office is still having【C17】______in confirming the attendance of others in the select group of about 50 wealthy individuals, as many still【C18】______, said Zhang Jing, spokeswoman of the Bill and Melinda Gates foundation Beijing Representative Office on Tuesday. She said the office had to repeatedly convince those who received invitations that the organizers had【C19】______combined donation plan for the charity meeting and that the activities would be closed to the media in order to keep the participants"【C20】______confidential. 【C9】
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