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【简答题】
1mol H 2 O(l)在373.15K、 p θ 下加热完全变成373.15K的水蒸气,计算此过程的 Q 、W、ΔH和ΔU。已知完全蒸发1g H 2 O(l)需供给2.26 kJ热量。
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【单选题】What does the author say about the cause（s） of cheating? 查看材料
A.
Family， culture and society play an active part.
B.
Bad school environment is the leading cause of student cheating.
C.
Parents are always to blame for their children's cheating behaviour.
D.
Cheating exists primarily because students learn bad things from TV.
【简答题】大型主题娱乐包括三种类型,分别是__、花会队列型和分散荟萃型。
【简答题】根据句意及首字母提示写单词。 1. My family has one s______ so I can take a shower every day. 2. They eat b ______ at six thirty in the morning. 3. He does a good j______ in his class. 4. What time do you g______ up ...
【单选题】What is a cause for the change of Stefania’s body clock?
A.
Eating fewer hours of sleep.
B.
Having more hours of sleep
C.
Lacking physical exercise.
D.
Getting no natural light.
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