2. 职称英语
  3. The passage gives a general description of the benefits and potential problems o

The passage gives a general description of the benefits and potential problems o

游客2023-07-17  69
问题 The passage gives a general description of the benefits and potential problems of a hydrogen economy. [br] In the United States, most of the electricity is generated from coal or natural gas.
选项 A、Y
B、N
C、NG
答案 A
解析 在美国，电来自于煤和自然气的比例有多少? 根据上题出处下面的内容Where will the electricity for the electrolysis of water come from?可以发现Currently，about 68 percent of the electricity produced in the United States comes from coal or natural gas．而about 68 percent表明大部分电都来源于煤和天然气。
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