问题
单项选择题
提高凝聚热水温度,下面陈述错误的是()。
A.增加传热速率,提高溶剂油脱除效果
B.增加釜压力,使蒸气的分压减小
C.蒸气消耗量增加
D.冷凝的负荷增加
答案
参考答案:B
提高凝聚热水温度,下面陈述错误的是()。
A.增加传热速率,提高溶剂油脱除效果
B.增加釜压力,使蒸气的分压减小
C.蒸气消耗量增加
D.冷凝的负荷增加
参考答案:B
完形填空。 American people like to 1 "Thank you" when others help them or say 2 to them. Many Chinese people do so, 3 . It is a very 4 . You must say "Thank you" when someone passes you something on the table, when someone 5 the door open for you, when someone says you do your work 6 , or you buy a nice thing or your city is 7 . "Excuse me" is another sentence (句子) they often say. When you hear someone say "Excuse me" 8 you, you know he wants to pass you without touching (接触) you. If you want 9 others, say "Excuse me" first, and then begin talking. Let's 10 "Thank you: and "Excuse me" from now. | ||||
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