题目内容
政治经济学的研究对象是生产力而不是生产关系。
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判断对错：We can use private cars rather than public transportation in order to protect environment.
The earth has warmed by an average of nearly 1℃.
下列消毒灭菌法正确的是()
It would mean severe storms and floods in some countries while droughts in many more if the temperature is rising 2℃.
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