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266. At first he did not realize that he had succeeded in making a computer that ran on solar power(太陽(yáng)能). “Realize” in the sentence means “___________”

266. At first he did not realize that he had succeeded in making a computer that ran on solar power(太陽(yáng)能). “Realize” in the sentence means “___________”

A. understand           B. get to                     C. reach                   D. come true

266. At first he did not realize that he had succeeded in making a computer that ran on solar power(太陽(yáng)能). “Realize” in the sentence means “___________”