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在植物体内,进行各种代谢活动的主要组织是( )。

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  • 【名词&注释】

    年轻人(stripling)、年利率(annual interest rate)、次生木质部(secondary xylem)、薄壁组织(parenchyma)、初生木质部(primary xylem)

  • [单选题]在植物体内,进行各种代谢活动的主要组织是( )。

  • A. 机械组织
    B. 保护组织
    C. 分泌组织
    D. 薄壁组织

  • 查看答案&解析 点击获取本科目所有试题
  • 举一反三:
  • [单选题]下列哪种植物的种子属于有胚乳种子?( )
  • A. 大豆
    B. 蚕豆
    C. 花生
    D. 蓖麻

  • [单选题]C Too much TV-watching can harm children’s ability to learn and even reduce their chances of getting a college degree, new studies suggest in the latest effort to examine the effects of television on children.One of the studies looked at nearly 400 northern California third-graders. Those with TVs in their bedrooms scored about eight points lower on math and language arts tests than children without bedrooms TVs.
  • A. A second study, looking at nearly 1,000 grown-ups in New Zealand, found lower education levels among 26-year-olds who had watched lots of TV during childhood. But the results don’t prove that TV is the cause and don’t rule out that already poorly motivated youngsters(年轻人)may watch lots of TV.
    B. Their study measured the TV habits of 26-year-olds between ages 5 and 15. Those with college degrees had watched an average of less than two hours of TV per weeknight during childhood, compared with an average of more than 2½ hours for those who had no education beyond high school.
    C. In the California study, children with TVs in their rooms but no computer at home scored the lowest, while those with no bedroom TV but who had home computers scored the highest.
    D. While this study does not prove that bedroom TV sets caused the lower scores, it adds to accumulating findings that children shouldn’t have TVs in their bedrooms.
    E. 第64题:
    F. According to the California study, the low-scoring group might____________.
    G. have watched a lot of TV
    H. not be interested in math
    I. be unable to go to college
    J. have had computers in their bedrooms

  • [单选题]如果甲国年利率为1%,乙国货币对甲国货币呈贬值趋势,预期一年后贬值为2%,那么,不考虑其他因素的条件下,从投资的角度看
  • A. 更多的资金将会流向甲国
    B. 更多的资金将会流向乙国
    C. 甲乙两国资金出现等量流动
    D. 甲乙两国间停止资金流动

  • [单选题]Bras Basah Road is named _______.
  • A. after a person
    B. after a place
    C. after an activity
    D. by its shape

  • [单选题]边材属次生木质部,心材属初生木质部(primary xylem)。( )
  • A. 正确
    B. 错误

  • [单选题]Could I speak to ______ is in charge of International Sales please?
  • A. who B. what
    B. whoeverD. whatever

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