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110. a certain clock marks every hour by striking a number of times equal to the hour, and the time required for a stroke is exactly equal to the time interval between stokes. At 6:00 the time lapse between the beginning of the first stroke and the end of the last stroke is 22 seconds. At 12:00, how many seconds elapse between the beginning of the first stroke and the end of the last stroke? A) 72 B) 50 C)48 D) 46 E) 44 答案是D) 求题目解释和解答,不明白啊不明白~谢谢谢~~~ |
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