| For the first time in history,
evolution has taken a backseat. There is an ongoing realization that human
beings are capable of directly shaping their own evolution. As we case into the
twenty-first century, we realize that genetic engineering is undoubtedly going
to have a dramatic {{U}} (67) {{/U}} on our lives. It seems that with
genetic engineering, science has moved from {{U}} (68) {{/U}} the natural
world to redesigning it. Now we must ask ourselves {{U}} (69)
{{/U}} this influence will be for better or for worse. However, scientists
remain {{U}} (70) {{/U}} in their opinions. Some have {{U}} (71)
{{/U}} against the hazards of genetic engineering, {{U}} (72) {{/U}}
others have dismissed these perils as inconsequential. Lewis Wolpert, professor
of biology at University College London, says, "There are no ethical
{{U}} (73) {{/U}} bec A. challenging B. dangerous C. disastrous D. magic [单选题] 自然人作保证人的,所保证的借款本息额不得超过该自然人前( )的合法收入额。
A.一年 B.二年 C.三年 D.四 [判断题]TSRS间通过信号安全数据网连接，物理层采用以太网协议。
A.正确 B.错误 [单选题]病毒属于:
A.原核细胞型微生物 B.真核细胞型微生物 C.非细胞型微生物 D.不属于微生物 [单选题]试验应使用规范的短路线，加电压前应检查试验接线，确认表计倍率、量程、调压器零位及仪表的初始状态均正确无误后，通知（ ）离开被试设备，并取得试验负责人许可，方可加压。
A.所有人员 B.试验人员 C.无关人员 D.工作人员 [单项选择]下列成分中，抗凝血作用最强的是
A. 水蛭素 B. 蚯蚓素 C. 蚯蚓毒素 D. 次黄嘌呤 E. 琥珀酸 [判断题]K-271采用蒸汽加氮气密封。
A.正确 B.错误 [单项选择]三江源自然保护区主要保护（）
A. 高寒草甸和湿地 B. 温带针阔叶混交林 C. 亚热带常绿阔叶林 D. 温带草原及湖泊 [单项选择]《针灸大成》的作者是（）
A. 徐凤 B. 王惟一 C. 杨继洲 D. 滑伯仁 E. 汪机 我来回答: 提交
|
