单选题 In par

A、 6 the author______.A. gives an example of ideal rivers for generating electricityB. explains in detail what a suitable fiver for generating electricity should beC. states that the amount of water in the fiver is very importantD. implies that the water plays an important role in industry

【正确答案】

【答案解析】[考核题型] 细节题
[解析] 作者从该段的第二句开始详细介绍了何为发电的合适河流，可见只有B合题意。