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Rivers have been important to man ______. [br] Energy is obtained from rivers by
Rivers have been important to man ______. [br] Energy is obtained from rivers by
游客
2023-10-08
55
管理
问题
Rivers have been important to man ______. [br] Energy is obtained from rivers by ______.
选项
A、building bridges across them
B、building dams across them
C、driving generators into them
D、channelling them into homes and factories
答案
B
解析
本题问的是用何种方式才能从河水中得到能量?从第四段第二句"人们建立巨大的水坝,控制河水,灌溉庄稼,并且获得发动发电机的能量"可以找到答案。
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