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当前学科：高级汽油加氢装置操作工考试
题目：
单选
避免催化剂损坏，在加氢装置停工过程必须对反应系统进行（）
A . 恒温脱氢
B . 再生烧焦
C . 热氢带油
D . 硫化恒温
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对花
在全身麻醉下，急性溶血反应的重要体征为（）
Promising Results from Cancer Study A new experimental vaccine(疫苗)has shown promising results in the fight against lung cancer．In a small Texas-based study，a vaccine developed by scientists at Baylor University Medical Centre in Dallas，USA，cured lung cancer in some patients and slowed the progress of the disease in others． Researchers have reported encouraging findings from this small study．Forty-three patients suffering from lung cancer were involved in these trials．Ten of these patients were in the early stages and thirty—three in the advanced stages of the disease．They were injected with me Vaccine every two weeks for three months，and were carefully monitored for three years.In three of the patients in me advanced stages of cancer，the disease disappeared and in the others，it did not spread for five to twenty—four months．However，no great difference was seen in the patients in the early stages of the illness． This new vaccine uses the patients’own immune、system．It is made specifically for each patient and is injected into the arm or leg．It stimulates the body’s immune system，which then recognizes that the cancer cells are harmful，and attacks and destroys them. The vaccine could be effective against other forms of cancer．It offers great hope for the treatment of cancer in general，although further studies are needed before such treatment can be widely used．根据以上内容，回答题。The vaccine cured all the participants in the trial．
在饭店里，英文缩写“OCC”表示（）
用于矿井局部地点通风的，它产生的全压几乎全部用于克服它的连接的风筒阻力的通风机叫（）。
自编教材编写制作起来难度较小，不需培训者有较髙的计算机应用能力。
《担保法》规定，定金的数额由当事人约定，但不得超过主合同标的额的（）。
（）池型呈长方形，水是按水平方向流过沉降区并完成沉降过程的。
基金公司进行投资运作的风险控制和内部监察的根本目的是（）。