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问题 选择题

30年前，一场关于真理标准问题的大讨论，极大地解放了人们的思想，使中国走上改革开放之路。这主要表明[ ]

①哲学是社会变革的先导

②哲学都是自己时代的精神上的精华

③社会存在决定社会意识

④社会意识对社会发展具有能动作用

A．①②

B．②④

C．②③

D．①④

答案

答案：D

单项选择题

可用于制备不溶性骨架片（）

A．羟丙基甲基纤维素

B．单硬脂酸甘油酯

C．大豆磷脂

D．无毒聚氯乙烯

E．乙基纤维素
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问答题

The price of crude oil hit an all-time high early in April. The surge in oil price harms virtually all consumers and industries.
Nevertheless, according to Wharton finance professor Jeremy Siege, record high prices are not as bad as they look. "The major reason for that is we have become much more energy efficient."

Topic: The rising price of oil


Questions for Reference:
1. What are the advantages and disadvantages of the rising price of oil on the economic development
2. Why does the price of oil fluctuate What can we do to reduce the negative effects to the least
3. What does Prof. Siege mean when he says we are more energy efficient

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