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According to the author when will the problem

2022-08-05 17:38:44 问答库 阅读 170 次

问题详情

According to the author, when will the problems to explore the deeper sea largely be solved?
A.In the next generation.
B.By the end of the 20th century.
C.In the near future.
D.By the middle of the 21st century.

参考答案

正确答案:D
解析:21世纪50年代,也就是2050年左右。

考点: