2. 职称英语
  3. A、People are driving cars with electricity.B、Scientists are producing cleaner e

A、People are driving cars with electricity.B、Scientists are producing cleaner e

游客2023-08-06  50
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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