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【单选题】
药典规定检查砷盐时，应取标准砷溶液2.0ml(每ml相当于lμg的As)制备标准砷斑，依法检查溴化钠中的砷盐(《中国药典》2000版)，规定含砷不得超过0.0004％，应取供试品A.
0.5g
B.
0.50g
C.
5g
D.
5.0g
E.
2.0g
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举一反三
【单选题】In terms of health condition, we must not forget that health ______is brought about not by doctors but by patients themselves.
A.
discovery
B.
treatment
C.
recovery
D.
prescription
【单选题】梅里兹等人通过研究认为，贸易福利主要来自三个层面：其一是贸易满足了消费者对产品多样性的偏好，由此导致（ ）的福利增加；其二是贸易促使企业提高生产技术水平，由此导致（ ）的福利增加；其三是贸易使行业内资源更多地流向生产率更高、规模更大的企业，由此导致（ ）的总福利增加。
A.
消费者-企业-行业
B.
生产者-行业-国家
C.
无
D.
无
【单选题】in terms of health condition we must not forget that health ______ is brought about not by doctors but by patients themselves.
A.
recover
B.
recovery
C.
discover
D.
discovery
【简答题】Listening 1 (unit 1) Mike: Hey, Lynn, how was your weekend? Lynn: It was great! I went cycling around the ______ last Saturday, with several cycling club ________. We started at our school gate and ro...
【简答题】Mike: Hey, Lynn . ________1________ Lynn: It was great! I went cycling around the city last Saturday, with several cycling club members. We started at our school gate and rode by Dongfeng Bridge in th...
【单选题】In terms of health condition, we must not forget that health _____ is brought about not by doctors but by patients themselves.
A.
recovery
B.
discovery
C.
coverage
D.
covert
【单选题】In terms of health condition, we must not forget that health ____ is brought about not by doctors but by patients themselves.
A.
consistency
B.
accuracy
C.
efficient
D.
recovery
【单选题】以下的语句正确的是()。
A.
对于一辆汽车来说，所用汽油辛烷值越高越好
B.
如果制动液中混入了其它的制动液，其沸点会升高
C.
车辆中液体用以完成动力传输，液压控制和润滑等功能
D.
在车辆发动机中使用黏度和发动机机油一样的齿轮油不会有问题
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