皮皮学,免费搜题
登录
搜题
【简答题】
Part B Directions: In the following article some paragraphs have been removed. For Questions 66-70, choose the most suitable paragraph from the list A-F to fit into each of the numbered gaps. There is one paragraph which does not fit in any of the gaps. Mark your answers on ANSWER SHEET 1. Supermarket shoppers have never been more spoilt for choice. But just when we thought traditional systems of selective farming had created the most tempting array of foods money can buy, we are now being presented with the prospect of genetically created strains of cabbages, onion, tomato, potato and apple. It may not tickle the fancy of food purists but it fires the imagination of scientists. Last week they discovered that the classic Parisian mushroom contains just the properties that, when genetically mixed with a wild strain of mushroom from the Sonora desert in California, could help it grow en masse while at the same time providing it with the resilience of the wild strain. 66.______ ' We have found a way of increasing the success rate from one to 90 per cent. ' This is just one of the many products that, according to skeptics, are creating a generation of 'Frankenfoods'. The first such food that may be consumed on a wide scale is a tomato which has been genetically manipulated so that it does not soften as it ripens. 67.______ Critics say that the new tomato—which cost $25 million to research—is designed to stay on supermarket shelves for longer. It has a ten-day life span. Not surprisingly, every-hungry US is leading the search for these forbidden fruit. By changing the genes of a grapefruit, a grower from Texas has created a sweet, red, thin-skinned grapefruit expected to sell at a premium over its California and Florida competitors. For chip fanatics who want to watch their waist-lines, new high-starch, low-moisture potatoes that absorb less fat when fried have been created, thanks to a gene from intestinal bacteria. The scientists behind such new food argue that genetic engineering is simply an extension of animal and plant breeding methods and that by broadening the scope of the genetic changes that can be made, sources of food are increased. Accordingly, they argue, this does not inherently lead to foods that are less safe than those developed by conventional techniques. But if desirable genes are swapped irrespective of species barriers, could things spiral out of control? 'Knowledge is not toxic, 'said Mark Cantley , head of the biotechnology unit at the Organisation for Economic Cooperation and Development, 'It has given us a far greater understanding of how living systems work at a molecular level and there is no reason for people to think that scientists and farmers should use that knowledge to do risky things. ' Clearly, financial incentive lies behind the development of these bigger, more productive foods. But we may have only ourselves to blame. In the early period of mass food commerce, food varieties were developed by traditional methods of selective breeding to suit the local palate. But as suppliers started to select and preserve plant variants that had larger fruit, consumer expectations rose, leading to the development of the desirable clones. Still, traditionalists and gourmets in Europe are fighting their development. 68.______ Even in the pre-packaged US, where the slow-softening tomato will soon be reaching supermarkets, 1, 500 American chefs have lent their support to the Pure Food Campaign which calls for the international boycott of genetically engineered foods until more is known about the consequences of the technology and reliable controls have been introduced. In the short term, much of the technology remains untested and in the long term the consequences for human biology are unknown. Questions have arisen over whether new proteins in gen
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【多选题】赵某在6个月内因为擅自离岗被所在公司书面警告两次,根据用人单位的规章制度被解除劳动合同。赵某不服申请劳动仲裁。针对本案,下列说法正确的是
A.
规章制度中有两次书面警告予以解除劳动合同的明确规定,是仲裁机构不支持 赵某请求的基本依据
B.
赵某若主张并能够证明其不知前述规章制度的存在,是仲裁机构支持赵某请求 的基本依据
C.
若赵 某 主张被迫签署书面警告后果告知书,对该事实的证明应当达到排除合理 怀疑的标准
D.
若赵某对该争议的仲裁结果不服,在收到仲裁裁决15日内,可以 申请法院撤销 仲裁裁决
【多选题】(多选题)以下特征数中,能反映数据离散趋势的有( )。
A.
极差
B.
方差
C.
标准差
D.
变异系数
【判断题】乳品工艺学是以乳为研究对象,研究其性质,营养价值及加工方法的一门学科。其领域包括基础科学部分和乳品加工技术
A.
正确
B.
错误
【多选题】类之间的关系包括关联、( )、泛化、( )等四大关系。
A.
聚合
B.
组合
C.
依赖
D.
接口与实现
【简答题】类之间的关系包括()关系、()关系、()关系和()关系。
【多选题】普通股票的特征有()。
A.
是最基本的股票
B.
是最重要的股票
C.
是标准的股票
D.
是风险最大的股票
【多选题】普通股票的特征有( )。
A.
普通股票是最基本的股票
B.
警通股票是最重要的股票
C.
普通股票是标准的股票
D.
普通股票是风险最大的股票
【单选题】合同解除针对的标的是( )
A.
无效合同
B.
有效合同
C.
可撤销合同
D.
效力待定合同
【单选题】合同解除针对的标的是( )
A.
有效合同
B.
无效合同
C.
可撤销合同
D.
效力待定合同
【多选题】普通股票的特征有( )。
A.
普通股票是最基本的股票
B.
普通股票是收益最高的股票
C.
普通股票是标准的股票
D.
普通股票是风险最低的股票
相关题目: