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【单选题】
目前船用沸腾式海水淡化装置海水加热和蒸汽冷凝是______进行。A.
在相同的真空压力下
B.
在不同的真空压力下
C.
前者在正压力下，后者在真空下
D.
后者在正压力下，前者在真空下
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举一反三
【单选题】What will be the result of harmful emission reductions for the developing countries?
A.
Developing countries will be able to shun the mistakes made by developed countries in harmful emission.
B.
Economy of developing countries will be affected.
C.
Developing countries will meet the present emission standard for their industrialized needs.
D.
Developing countries will get money that can help them deduce waste emission.
【简答题】舌前 2/3 黏膜的温痛觉是 神经支配;舌前 2/3 黏膜的味觉是 神经支配;舌后 1/3 黏膜的温痛觉是 神经支配;舌肌是 神经支配。
【单选题】The word laser was coined as an acronym for Light Amplification by the Stimulated Emission of Radiation. Ordinary light, from the sun or a light bulb, is emitted spontaneously, when atoms or molecules...
A.
light bulb
B.
energy
C.
molecule
D.
atom
【简答题】一步就可以摸索出最适合反应条件的PCR仪为（）。
【简答题】Fugitive emission may account for 70–90% of the air emissions from a chemical manufacturing operation. List 6 unintentional release locations.
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