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D Recently there was a major discovery in the scientific research — the mapping of all DNA in a human gene( 基因 ) is complete. Couple of years ago, this seems an impossible task for scientist to accomplish. All this progress in science leads us to believe that the day, when the human being will be cloned, is not far away. Human cloning has always been a topic of argument, in terms of morality or religion. Taking a look at why cloning might be beneficial, among many cases, it is arguable that parents who are known to be at risk of passing a genetic limitation to a child could make use of cloning. If the clone was free of genetic limitations, then the other clone would be as well. The latter could be inserted in the woman and allowed to ripen to term. Moreover, cloning would enable women, who can’t get pregnant, to have children of their own. Cloning humans would also mean that organs could be cloned, so it would be a source of perfect transfer organs. This, surely would be greatly beneficial to millions of unfortunate people around the world that are expected to lose their lives due to failure of single (or more) organ(s). It is also arguable that a ban on cloning may be unlawful and would rob people of the right to reproduce and limit the freedom of scientists. Arguments against cloning are also on a perfectly practical side. Primarily, I believe that cloning would step in the normal “cycle” of life. There would be a large number of same genes, which reduce the chances of improvement, and, in turn, development — the fundamental reason how living things naturally adapt to the ever-changing environment. Life processes failing to do so might result in untimely disappearance. Furthermore, cloning would make the uniqueness that each one of us possesses disappear. Thus, leading to creation of genetically engineered groups of people for specific purposes and, chances are, that those individuals would be regarded as “objects” rather than people in the society. Scientists haven’t 100 per cent guaranteed that the first cloned humans will be normal. Thus, this could result in introduction of additional limitations in the human “gene-pool”. Regarding such arguable topics in “black or white” approach seems very innocent to me personally. We should rather try to look at all “shades” of it. I believe that cloning is only legal if its purpose is for cloning organs; not humans. Then we could regard this as for “saving life” instead of “creating life”. I believe cloning humans is morally and socially unacceptable.
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【单选题】在无风险报酬的情况下,某证券利率4%,纯利率5%,则通胀率为()%
A.
1
B.
-1
C.
-0.01
D.
0.1
【多选题】患儿,男性,5岁。诊断:支原体肺炎,先后给予青霉素、阿莫西林、阿奇霉素等抗菌药治疗。下列关于抗菌药物不良反应的叙述中,哪些是正确的()
A.
喹诺酮类药物可影响软骨发育,不应给孕妇、哺乳期妇女及18岁以下未成年患者使用
B.
碳青霉烯类、喹诺酮类、大环内酯类抗菌药物均可能引起严重中枢神经系统不良反应
C.
早产儿、新生儿由于肝酶不足,使用氯霉素后可发生“灰婴综合征”
D.
任何一种氨基糖苷类的任一品种均具肾毒性、耳毒性和神经肌肉阻滞作用
E.
氨基糖苷类和克林霉素均有神经肌肉阻滞作用
【单选题】胎盘的功能不包括
A.
气体交换
B.
营 养物质的供应
C.
防御功能
D.
合成功能
E.
呼吸功能
【单选题】胎盘的功能不包括
A.
氧及二氧化碳的交换
B.
供给营养
C.
防御功能
D.
呼吸功能
E.
合成功能
【多选题】下列哪些与布洛芬相符
A.
为非甾体消炎镇痛药
B.
具有抗菌作用
C.
其化学结构中含有一个手性碳原子,临床上使用其消旋体
D.
结构中含有异丁基
E.
为抗溃疡病药物
【单选题】胎盘的功能不包括
A.
气体交换
B.
防御功能
C.
合成功能
D.
营养功能
E.
治疗功能
【单选题】胎盘的功能不包括
A.
气体交换功能
B.
营养供应功能
C.
防御功能
D.
排出胎儿代谢产物
E.
保护母体
【单选题】胎盘的功能不包括
A.
免疫功能
B.
气体交换
C.
营养作用
D.
保持胎儿恒温
E.
排泄作用
【单选题】胎盘的功能不包括
A.
气体交换
B.
防御功能
C.
合成功能
D.
排泄胎儿代谢废物
E.
治疗功能
【单选题】突发重大动物疫情应急组织体系不包括
A.
应急指挥部
B.
专家委员会
C.
动物诊疗机构
D.
各级兽医主管部门
E.
动物卫生监督机构
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