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Until recently, the 'science of the future' was supposed to be electronics and artificial intelligence. Today it seems more and more likely that the next great breakthroughs in technology will be brought through a combination of those two sciences with organic chemistry and genetic engineering. This combination is the science of biotechnology. Organic chemistry enables us to produce marvelous synthetic materials. However, it is still difficult to manufacture anything that has the capacity of wool to conserve (保存) heat and also to absorb moisture. Nothing that we have been able to produce so far comes anywhere near the combination of strength, lightness and flexibility that we find in the bodies of ordinary insects. Nevertheless, scientists in the laboratory have already succeeded in 'growing' a material that has many of the characteristics of human skin. The next step may well be 'biotech hearts and eyes' which can replace diseased organs in human beings. These will not be rejected by the body, as is the case with organs from humans. The application of biotechnology to energy production seems even more promising. In 1996 the famous science fiction writer, Arthur C. Clarke, many of whose previous predictions have come true, said that we may soon be able to develop remarkably cheap and renewable sources of energy. Some of these power sources will be biological. Clarke and others have warned us repeatedly that sooner or later we will have to give up our dependence on non-renewable power sources. Coal, oil and gas are indeed convenient. However, using them also means creating dangerously high levels of pollution. It will be impossible to meet the growing demand for energy without increasing that pollution to catastrophic (灾难性的) levels unless we develop power sources that are both cheaper and cleaner. It is attempting to think that biotechnology or some other 'science of the future' can solve our problems. Before we surrender to that temptation we should remember nuclear power. Only a few generations ago it seemed to promise limitless, cheap and safe energy. Today those promises lie buried in a concrete grave in a place called Chernobyl, in the Ukraine. Biotechnology is unlikely, however, to break its promises in quite the same or such a dangerous way. 小题1:According to the passage, the science of the future is likely to be ________. A.electronics B.biotechnology C.genetic engineering D.nuclear technology 小题2:The materials produced with organic chemistry are ________.at present. A.as good as wool B.as good as an insect's body C.better than natural materials D.not as good as natural materials 小题3:According to the passage, it may soon be possible ________. A.to transplant human organs B.to make artificial hearts and eyes C.to produce drugs without side effects D.to make something as good as human skin 小题4:In 1996, Arthur C. Clarke predicted that_______. A. the Chernobyl disaster would happen in two years B. we will never stop using non-renewable power sources biological C. oil, gas and coal could be repeatedly used in the future D. power sources would be put into use soon 小题5:What do we learn from the last paragraph? A.Biological power will keep all its promises. B.Biological power is cheaper than nuclear power. C.Biotechnology can solve all our future energy problems D.Biological power may not be as dangerous as nuclear power
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【单选题】在微信、QQ等社交工具上达成的协议,属于下列哪一种形式的合同?( )
A.
视听资料形式
B.
书面形式
C.
其他形式
D.
口头形式
【简答题】ABC库存分类管理法属于A.类的产品的品种数大约只占全部存货总品种数的()。 A.10% B.20% C.30% D.40%
【单选题】ABC库存分类管理法属于A类的产品的品种数为大约只占全部存货总品种数的( )。
A.
10%
B.
20%
C.
30%
D.
40%
【多选题】根据个人所得税法的有关规定,下列说法正确的有( )。
A.
个人独资企业的清算所得是指企业清算时的全部资产或者财产的公允价值扣除各项清算费用、损失、负债、以前年度留存的利润后,超过实缴资本的部分
B.
个人独资企业的生产经营所得是指企业当年留存的利润
C.
个人投资者兴办两个或者两个以上企业的,其费用扣除标准,由税务机关决定在其中一个企业的生产经营所得中扣除
D.
实行查账征税方式的个人独资企业和合伙企业改为核定征税方式后,在查账征税方式下认定的年度经营亏损未弥补完的部分,不得再继续弥补
E.
个人独资企业的投资者及其家庭发生的生活费用与企业生产经营费用混合在一起,并且难以划分的,全部视为投资者个人及其家庭发生的生活费用,不允许在税前扣除
【判断题】线别旅客运输密度是表示铁路某营业线平均每公里所负担的旅客周转量量( )
A.
正确
B.
错误
【单选题】ABC库存分类管理法中属于A类产品的品种数大约只占全部存货总品种数的( )。
A.
10%
B.
20%
C.
30%
D.
40%
【单选题】企业设有生产、营销、财务 、人力资源等部门,这种部门划分的方法一般是( )。
A.
按体制划分
B.
按职能划分
C.
按产品划 分
D.
按人数划分
【多选题】根据个人所得税的有关规定,下列说法正确的有( )。
A.
个人独资企业的生产经营所得是指企业当年留存的利润
B.
实行查账征税和核定征税的合伙企业和个人投资者享受相同的个人所得税优惠政策
C.
个人投资者兴办两个或者两个以上企业的,由税务机关确定其费用标准,并决定在其中一个企业的生产经营所得中扣除相应费用
D.
实行查账征税方式的个人独资企业和合伙企业改为核定征税方式后,在查账征税方式下认定的年度经营亏损未弥补完的部分,不得再继续弥补
E.
纳税年度内个人投资者从其投资的企业借款,在该纳税年度终了后既不归还,又不用于生产经营的,其未归还的借款作为个人投资的红利收入,依照“利息、股息、红利”项目征收个人所得税
【判断题】一般情况下利率与投资呈同方变化关系。
A.
正确
B.
错误
【单选题】下列指标中,______是企业当年所有者权益总的增长率,反映了企业所有者权益在当年的变动水平。
A.
营业增长率
B.
总资产报酬率
C.
资本积累率
D.
净资产收益率
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