What prevented Chris Cocalis from developing ebikes sooner?
未知类型：{'label': 'questionDesc', 'content': '请根据材料选择正确答案。', 'isMemberControl': 0, 'type': 181}
未知类型：{'label': 'source', 'content': '2020年12月四级卷三 仔细阅读1', 'isMemberControl': 0, 'type': 181}
A: Retailers’ refusal to deal in ebikes.
B: High profits from conventional bikes.
C: Users’ concern about risks of ebike riding.
D: His focus on selling costly mountain bikes.
未知类型：{'label': 'questionDesc', 'content': '请根据材料选择正确答案。', 'isMemberControl': 0, 'type': 181}
未知类型：{'label': 'source', 'content': '2020年12月四级卷三 仔细阅读1', 'isMemberControl': 0, 'type': 181}
A: Retailers’ refusal to deal in ebikes.
B: High profits from conventional bikes.
C: Users’ concern about risks of ebike riding.
D: His focus on selling costly mountain bikes.
举一反三
- What prevented Chris Cocalis from developing ebikes sooner? A: Retailers’ refusal to deal in ebikes. B: High profits from conventional bikes. C: Users’ concern about risks of ebike riding. D: His focus on selling costly mountain bikes.
- What is said about the fourth stack of the ships? 未知类型：{'label': 'questionDesc', 'content': '请根据材料选择正确答案。', 'isMemberControl': 0, 'type': 181} 未知类型：{'label': 'source', 'content': '2018年6月 四级 卷三 仔细阅读2', 'isMemberControl': 0, 'type': 181} A: ① B: ② C: ③
- What is mentioned as a consequence of extracting water from deep underground? 未知类型：{'label': 'questionDesc', 'content': '请根据材料选择正确答案。', 'isMemberControl': 0, 'type': 181} 未知类型：{'label': 'source', 'content': '2018年12月 四级 卷一 仔细阅读1', 'isMemberControl': 0, 'type': 181} A: ①② B: ②④ C: ②③ D: ①④
- What happened to the ship Olympic in the end? 未知类型：{'label': 'questionDesc', 'content': '请根据材料选择正确答案。', 'isMemberControl': 0, 'type': 181} 未知类型：{'label': 'source', 'content': '2018年6月 四级 卷三 仔细阅读2', 'isMemberControl': 0, 'type': 181} A: ① B: ②
- What are students expected to do in the learning process? 未知类型：{'label': 'questionDesc', 'content': '请根据材料选择正确答案。', 'isMemberControl': 0, 'type': 181} 未知类型：{'label': 'source', 'content': '2019年12月 四级卷三 仔细阅读1', 'isMemberControl': 0, 'type': 181} A: ① B: ② C: ③ D: ④