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【简答题】
使用热电偶时要采用补偿导线,当温度不是0°C时,为了保证 测量精度,需要进行 。
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举一反三
【单选题】Passage ThreeQuestions 32 to 35 are based on the passage you have just heard.32.
A.
The workers on the underground platfonns were replaced by machines.
B.
It became the first completely automatic railway in the world.
C.
A completely automatic line was added to its network.
D.
Its trains became computer-controlled.
【简答题】Passage 32 TOEIC.mp3
【单选题】Passage Three Questions 32 to 35 are based on the passage you have just heard.32.
A.
Job security . C. Challenging work.
B.
Good labour relations. D. Attractive wages and benefits.
【简答题】Passage Three Questions 32 to 35 are based on the passage you have just heard. 第32题： A)They were too busy working to learn to read . B)Their owners were afraid they could read. C)They had no one to te...
【简答题】Passage 32 Sport Parachuting.mp3:
【多选题】药品经营企业的验收有权拒收或提出拒收的情况是( )
A.
假药劣药以及无注册商标的药品
B.
经有关部门批准生产的品种
C.
无出厂合格证或化验报告的产品
D.
生产厂商无确认合格结论的产品
E.
缺乏必要的使用说明的产品
【简答题】某研究者为了验证氯霉素对伤寒的疗效，在408例伤寒病人中进行对照实验，其中251例用氯霉素治疗，其余157例不用。结果使用组251人中死亡20人，死亡率7.07%，未用组157人中死亡36人，病死率22.8%，已有结论被亲自证实。在临床医学研究中，对受试者应该做到的是（ ）
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