2. 外语
  3. A、People are driving cars with electricity. B、Scientists are producing cleaner energies. C、Factories are installing smoke-cleani

A、People are driving cars with electricity. B、Scientists are producing cleaner energies. C、Factories are installing smoke-cleani

admin2021-09-16  74
问题
选项 A、People are driving cars with electricity.
B、Scientists are producing cleaner energies.
C、Factories are installing smoke-cleaning equipment.
D、People are using new materials which don’t need to be burned.
答案C
解析
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大学英语六级

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