As the world responds to the challenges of climate change, energy systems are evolving, and evolving fast. The past 10 years have seen the rise (and dramatic cost reduction) of renewable energy such as wind and solar, ___1____ that they are no longer considered alternative energy.

发布于 2021-02-16 02:03:12
【单选题】
A in addition
B to the extent
C on average
D on condition

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