2020.12.3 46. What do we learn from the passage about ebikes?
选项:
A:A) Their health benefits and fun values outweigh their cost.
B:B) They did not catch public attention in the United States until the 1990s.
C:C) They did not become popular until the emergence of improved batteries.
D:D) Their widespread use is attributable to people’s environmental awareness.
发布时间:2024-05-16 15:52:24