问题
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A liquid sight flow indicator in a refrigeration system is examined and gas bubbles are no
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The Norman Conquest started a continual flow of French words into English. _________
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It can be inferred that railroad refrigerator cars came into use ______.A.before 1860B.bef
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What is the substance called which can readily be converted from a liquid into a vapor, an
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【C17】A.soaked intoB.dipped intoC.flowed intoD.brought into
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Too much electric current may flow into a circuit as a result either of a fault in the cir