题目
What do we learn from the passage about ebikes?A. Their health benefits and fun values outweigh their cost.B. They did not catch public attention in the United States until the 1990s.C. They did not become popular until the emergence of improved batteries.D. Their widespread use is attributable to people’s environmental awareness.
What do we learn from the passage about ebikes?
A. Their health benefits and fun values outweigh their cost.
B. They did not catch public attention in the United States until the 1990s.
C. They did not become popular until the emergence of improved batteries.
D. Their widespread use is attributable to people’s environmental awareness.
题目解答
答案
C. They did not become popular until the emergence of improved batteries.
解析
文章中提到电动自行车（ebikes）的普及与电池技术的改进密切相关。在电池技术改进之前，电动自行车并未受到广泛欢迎。因此，电动自行车的流行是由于电池技术的改进，而不是其他因素，如健康益处、娱乐价值、成本或环保意识。