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"Salty" Rice Plant Boosts
Harvests British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more. Tim Flowers and Tony Yeo, from Sussex University’s School of Biological Sciences, have spent several years researching how crops, such as rice, could be made to grow in water that has become salty. The pair has recently begun a three-year programme, funded by the Biotechnology and Biological Sciences Research Council, to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops, starting with rice. It is estimated that each year more than 10m hectares (公顷) of agricultural land are lost becaus A. to find ways to prevent water pollution B. to identify genes that promote growth in salty soil C. to breed rice plants that taste salty D. to find ways to remove excessive salt from soil [不定项选择]从其功能上来说，投资银行内部控制机制的分类包括（）
A. 决策系统 B. 执行系统 C. 监督系统 D. 以上均正确 [填空题]Justice in society must include both a fair trial to the accused and the selection of an appropriate punishment for those proven guilty. Because justice is regarded as one form of equality ,we find in its earlier expressions the idea of a punishment equal to the crime. Recorded in the Bible is the expression "an eye for an eye, and a tooth for a tooth." That is, the individual who has done wrong has committed an offense against society. 46 ) To make repayment for this offense ,society must get equally balanced, which can be done only imposing an equal injury upon him. 47) This conception of deserved-punishment justice is reflected in many parts of the legal codes and procedures of modern times, which is illustrated when we demand the death penalty for a person who has committed murder. This philosophy of punishment was supported by the German idealist Hegel, who believed that society owed it to the criminal to put into operation a punishment equal to the crime he had committed. 48) The
[单选题]下述哪项不是由肾气不足所致
A.5 B.小便失禁 C.小便频数 D.小便涩痛 E.遗尿 F.小便余沥不尽 [简答题]IP报文每经过一个网络设备，包括Hub、LanSwitch和路由器，TTL值都会被减去一定的数值
[判断题]试验列车自动制动机制动的手信号昼间为用检查锤高举头上。（ ）
A.正确 B.错误 [判断题]低温型的钢轨探伤仪的工作环境温度为－20℃～50℃。
A.正确 B.错误 [单选题]下列哪组药物都具有升阳，发表作用
A.升麻、柴胡、葛根 B.荆芥、防风、紫苏 C.羌活、白芷、藁本 D.薄荷、蝉蜕、牛蒡子 E.麻黄、桂枝、香薷 [单项选择]The country's economic situation is as the statistics indicate that unemployment is increasing, prices rising and exports falling.
A. shrinking B. lingering C. deteriorating D. swelling [单项选择]If______, he promises that he will spare no effort in promoting public welfare.
A. elected B. elect C. electing D. being elected [判断题] 稀硫酸可与多数金属(比铜活泼)氧化物反应,生成相应的硫酸盐和水。
A.正确 B.错误 [单项选择]There are many kinds of friends. Some are always 16 you, but dont understand you. Some say only a few words to you, but understand you. Many people will step in your life, but only 17 friends leave footprints (脚印).
I shall always recall (回忆) the autumn and the girl with the 18. She will always bring back the friendship between us. I know she will always be my best friend.
It was the golden season. I could see the yellow leaves 19 with the cool 20. In such a season, I liked walking alone on the roads covered with leaves, 21 to the sound of them.
Autumn is a 22 season and life is uninteresting. The free days always get me 23. But one day, the sound of a violin 24 into my ears like a stream (小溪) flowing in the mountains. I was so surprised that I jumped to see what it was. A young girl, standing in the wind, was 25 in playing her violin.
I had 26 seen her before. The music was so nice that I listened quietly. Lost in the music, I didnt know that I had been 27 there for so lo
A. lost B. active C. busy D. interested [判断题]自制或改装以及主要部件更换或检修后的机具,应按其用途依据国家相关标准进行型式试验,经鉴定合格后方可使用。
A.正确 B.错误 [单选题]下列叙述错误的是（ ）。
A.严禁在机车或车辆底下避雪或避雨 B.严禁在线路中心避雪或避雨 C.除监控人员以外严禁扒乘运行中的机车、车辆，以车代步 D.在作业休息时，应到线路以外安全的地方休息。 [判断题]柴油发电机组加注的燃油需经过过滤及沉淀。
A.正确 B.错误 我来回答: 提交
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