一个质粒携带有氨苄青霉素抗性基因和卡那霉素抗性基因。利用卡那霉素抗性基-我要搜题网

{{I}} Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now listen to the passage.{{/I}}

Which of the following statements is NOT true of the exhaust system
A. It regulates the speed of a car.
B. It channels out the waste products of combustion.
C. It reduces the noises generated by the engine.
D. It cleans up the emissions harmful to the environment.

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[判断题]《山东省生产经营单位安全生产主体责任规定》要求,高危生产经营单位应当建立安全生产管理岗位风险津贴制度，专职安全生产管理人员应当享受安全生产管理岗位风险津贴，事业单位按国家有关规定执行。（ )
A.正确
B.错误

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[简答题]简述管道测量的主要内容。

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[单项选择]The name of Florence Nightingale lives in the memory of the world by virtue of the heroic adventure of the Crimea. Had she died -as she nearly did -upon her return to England, her reputation would hardly have been different; her legend would have come down to us almost as we know it today -that gentle vision of female virtue which first took shape before the adoring eyes of the sick soldiers at Scutari. Yet, as a matter of fact, shelived for more than half a century after the Crimean War; and during the greater part of that long period all the energy and all the devotion of her extraordinary nature were working at their highestpitch. What she accomplished in those years of unknown labor could,indeed, hardly have been more glorious than her Crimean triumphs; but it was certainly more important. The true history was far stranger even than the myth. In Miss Nightingale’s own eyes the adventure of the Crimea was a mere incident -scarcely more than a useful stepping-stone in her career. It
A. less dramatic
B. less demanding
C. less well-known to the public
D. more important

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[单项选择]《手缠纱布的花生猫》猫爸爸和猫妈妈一起抱着花生猫去了医院，谁给花生猫涂上了药膏？（）
A. 小象医生
B. 小羊医生
C. 小兔医生

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[判断题]安装锯链和导板,注意调整锯链的松紧度,检查紧急制动功能和润滑油供给情况。( )
A.正确
B.错误

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[单项选择]下面哪种血尿应考虑肾、输尿管结石（）
A. 无痛性血尿
B. 终末血尿
C. 活动后血尿
D. 初期血尿
E. 严重血尿伴血块

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[多选题]光面爆破的质量标准是( )。
A. 围岩面上留下均匀眼痕的周边眼数应不小于其总数的50%
B. 超挖尺寸不得大于150mm,欠挖不得超过质量标准规定
C. 围岩面上不应有明显的炮震裂缝

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[单选题]下列因素中，对微机工作影响最小的是()。
A.温度
B.噪声
C.湿度
D.磁场

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[单选题]固定硬母线金具的上压板是铝合金铸成的,如有损坏或遗失可用()代替。
A.铁板
B.備铁
C.铁合金
D.铝板