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【简答题】
C2C 的电子商务网站有那些收入方式?
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皮皮学刷刷变学霸
举一反三
【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.
【单选题】What's the major cause in the decline of Asian elephants?
A.
Their taming for circuses and zoos.
B.
The destruction of their natural homes.
C.
Man's lack of knowledge about their behavior.
D.
The greater vulnerability to extinction than other species.
【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.
【单选题】What was the cause of the patient's disease?
A.
Headaches.
B.
Stomach trouble.
C.
Distce of conscience.
D.
Some unknown physical weakness.
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