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判断题

The US-Spanish War was the first imperialist war for redividing the world, and it marked a new stage in which the U.S. transformed into an imperialist power.()
A、正确
B、错误

单项选择题

弱电解质的解离度和浓度的关系下面说法正确的是
A、浓度越大，解离度越大
B、浓度越小，解离度越大
C、解离度与浓度无关是常数
D、解离度只与温度有关