The eighteenth and nineteenth centuries the widespread use of electricity and the birth of the steam engine , leading to the development of factories and cities.
A. watched
B. observed
C. saw
D. showed
The eighteenth and nineteenth centuries the widespread use of electricity and the birth o
答案:2 悬赏:50 手机版
解决时间 2021-04-03 21:47
- 提问者网友：暮烟疏雨之际
- 2021-04-03 14:30
最佳答案
- 五星知识达人网友：逐風
- 2021-04-03 15:21
A. watchedB. observed(答案→)C. sawD. showed解析：可联系答.案.网客服索取。
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- 1楼网友：荒野風
- 2021-04-03 16:30
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