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【单选题】
冷库直接供液系统在节流过程中会产生气体，它造成的后果是（）。A.
影响蒸发器传热
B.
影响吸气压力
C.
影响冷凝压力
D.
影响排气压力
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皮皮学刷刷变学霸
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【单选题】Passage 1 The favorite food in the United States is hamburger. The favorite place to buy a hamburger is a fast food restaurant. At fast food restaurants, people order their food, wait a few minutes, a...
A.
some of
B.
most of
C.
a part of
D.
all of
【简答题】The favorite food in the United States is the hamburger. The favorite place to buy a hamburger is a fast food restaurant. At fast food restaurant, people order their food, wait a few minutes, and carr...
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【简答题】The favorite food in the United States is the hamburger. The favorite place to buy a hamburger is a fast food restaurant. At fast food restaurants, people order their food, wait a few minutes, and car...
【简答题】One of the favorite foods in the United States is the hamburger, a kind of flat found bread with fine-cut beef in between. The favorite place to buy a hamburger is a fast food restaurant At fast food ...
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