Some English scientists are identifying problems technology in the 21st century. If solve
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解决时间 2021-01-18 01:20
- 提问者网友：我没有何以琛的痴心不悔
- 2021-01-17 06:09
Some English scientists are identifying problems technology in the 21st century. If solved, the solutions could change the world.
A. facing
B. faced
C. being faced
D. having faced
最佳答案
- 五星知识达人网友：猎心人
- 2020-08-19 13:44
(答案→)A. facingB. facedC. being facedD. having faced解析：考查非谓语动词。句中facing technology in the 21st century作定语，修饰名词problems，之间为主动关系，故选A。
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- 1楼网友：举杯邀酒敬孤独
- 2019-11-05 09:30
谢谢解答
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