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【判断题】
在蒸汽压缩式制冷循环的热力计算中,工程上常采用制冷剂的压焓图来确定各状态点的参数值。A.
正确
B.
错误
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举一反三
【简答题】x 2 (y'+y 2 )=2．
【简答题】Americans eat ________ as they actually need every day. A) twice as much protein B) twice protein as much twice C) twice protein as much D) protein as twice much
【简答题】How many quarts of ice cream have been eaten by Americans in one year? The Americans eat more than______quarts of ice cream in a year.
【单选题】听力原文：Why do Americans eat daytime meals in a hurry? (12)
A.
They want to eat dinner slowly.
B.
They don't like eating at a restaurant.
C.
They are very busy.
D.
They don't like to eat.
【简答题】GMP对制药设备验证有哪些规定?
【单选题】What do experts say about American diet?
A.
Americans eat too many vegetables.
B.
Americans should eat more beef.
C.
Fatty beef is good for us.
D.
Americans eat too much beef.
【单选题】Americans eat ______ vegetables per person today as they did in 1910.
A.
more than twice
B.
as twice as many
C.
twice as many as
D.
more than twice as many
【单选题】― It is reported that Americans eat too much protein each day. ―They eat ______as they actually need.
A.
as twice much
B.
much as twice
C.
as much twice
D.
twice as much
【单选题】touch -m ex2 所实现的功能是 。
A.
仅改变文件ex2的修改时间
B.
仅改变文件ex2的保存时间
C.
仅改变文件ex2的创建时间
D.
仅改变文件ex2的根用户修改时间
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