题目内容

Please give an example of trade between two countries that is based on the differentiated products

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What is the trade basis expressed by the preference similarity theory?

We cannot predict the direction in which the trade flows by Linder’s theory.

A. 对
B. 错

下列说法中正确的是

A. 活化能与反应物本性无关,而与浓度有关
B. 活化能是指活化分子的平均能量与反应物分子的平均能量之差
C. 一般情况下,反应的活化能愈高,反应速率愈慢
D. 正逆反应的活化能数值相等,符号相反

活化能越大,活化分子的百分数越大,反应速率就越快。

A. 对
B. 错