Martin Cooper , a US researcher , was considered the first cell phone .A. inventedB. to i
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解决时间 2021-04-10 00:58
- 提问者网友：佞臣
- 2021-04-09 05:15
Martin Cooper , a US researcher , was considered the first cell phone .
A. invented
B. to invent
C. having invented
D. to have invented
最佳答案
- 五星知识达人网友：逐風
- 2021-04-09 05:25
A. inventedB. to inventC. having invented(答案→)D. to have invented解析：考查非谓语动词。sb be considered to have done sth认为某人过去做过某事。句意：Martin Cooper，美国研究者，被认为第一个发明手机，
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- 1楼网友：我住北渡口
- 2021-04-09 06:51
谢谢了
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