43. Which of the following is the most appropriate topic sentence for the paragraph below?
(A) The invention of telescope helps mankind see better and understand more.
(B) The range of human perception is widened through radio，telephone，and telegraph.
(C) The microscope has helped mankind see the very small things in the world.
(D) Man has been always interested in extending the range of his senses and the power of his mind.
_____ Through the years，he has invented many instruments to help him see
better and understand more. The telescope，for example，was invented to allow him to look faraway objects. To see the very small things in the world，the microscope was developed. Radio，telephone，and telegraph are means by which man has extended the range of his senses of hearing and speech.
題型二 ：（第44、45題）下面兩篇段落各少了一個句子，請依各段文意選出一個最恰當的選項。
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