题干

导管、筛管贯穿植物体,都起运输作用.水分进入植物体以后的运输途径是(  )

A:在筛管中,沿“叶一茎一根”运输

B:在筛管中,沿“根一茎一叶”运输

C:在导管中,沿“叶一茎一根”运输

D:在导管中,沿“根一茎一叶”运输

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答案(点此获取答案解析)

D

同类题3

阅读理解

    Jeanne Calment, a French woman, became a record breaker on 17 October of 1995, when at the age of 120 years and 238 days, she became the longest-lived human being on record. A Japanese man died in 1986 at the age of 120 years and 237 days.

    Jeanne Calment lives in a small old people's home in the south of France; her husband, her only child and her grandson have all died. She is nearly blind and deaf and is always in a wheelchair, but her doctor describes her as being more like a 90-year-old in good health than someone of 120. She still has a lively sense of humor. When asked on her 120th birthday what she expected of the future, she replied: A very short one. She also remarked that she thought the good Lord had forgotten all about her.

    So what is the key to a long life? According to some doctors, diet, exercise and no smoking are the three important factors. Jeanne Calment has followed two of the tips. She has always eaten a healthy diet, and she used to do exercise every day until she broke her leg at the age of 115. However, until recently she drank two glasses of strong red wine a day, and she does smoke (now only a little). Besides, Jeanne Calment might have got very good genes from her parents. Her father lived to the age of 94 and her mother to 86.

    A local lawyer bought her house when she was 80 under an agreement that he would pay her some money every year until her death. It must have seemed a good move at the time, but so far the lawyer has paid her at least three times the value of the house. Every year on her birthday Jeanne Calment sends him a card saying: Sorry, I'm still alive!

同类题4

14至18世纪的欧洲经历了一场社会巨变,在各个领域出现了一些新现象,不断冲击着旧观念、旧制度……推动欧洲迈入近代社会。阅读下列材料,回答问题。
材料一 他是画家、雕塑家、数学家,还是一名哲学家……(他)以新奇的目光重新审视一切的勇气、热情和才能使人类精神从经院的暗室,冲向色彩缤纷的新天地……我们相信伟大的时代塑造了达·芬奇,而达·芬奇又成为那个时代一个不朽的标记。
——侯建新《社会转型时期的西欧与中国》
(1) 依据材料一并结合所学知识,写出达·芬奇“新奇的目光”中蕴含着怎样的时代精神?
材料二 文艺复兴对葡萄牙和西班牙这两个沿海地区的影响是航海……到了这个时候,欧洲人的眼界不再只向内看了,不再只向欧洲这一个区域里看,要往外看,向海洋看。葡萄牙和西班牙是先行者,很快荷兰跟上来,英国跟上来,法国也跟了上来。
——陈乐民《欧洲文明十五讲》
(2)依据材料二结合所学知识,指出发现美洲对人类文明的交流有何重要影响?
材料三 英国用“光荣革命”的非暴力手段建立了一种新的政治制度……新制度营造出一种宽松自由和开放的环境……否则,就难以想象英国社会如何能够在18、19世纪和平地实现现代化。
——钱乘旦《世界现代化历程》
(3) 依据材料三并结合所学知识,指出“光荣革命”后,英国确立“新的政治制度”依据的主要法律文件是什么?依据该法律文件确立的政治体制是什么?
材料四  1840—1920年英国农业人口占全国总人口的百分比变化表

年份1840187019001920
百分比2214.88.47.1

(4)导致表格中农业人口百分比变化的主要原因是什么?
(5)综合上述材料说一说欧洲迈入近代经历了怎样的历程?