题目内容
for循环后的可迭代对象可以是字符串、列表、元组、集合等类型。
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Python支持for … in 循环。
Please read aloud Paragraph 5 of Text A until you have learned it by heart. Then try to complete the following passage from memory.He began a very careful training program. He ___1___ every other day with weightlifting, with some kind of running work on ___2___ days. The program was carefully ___3___ by Michael's coach, trainer and father. Michael's ___4___, determination and discipline was a coach's ___5___. Besides being an ___6___ student and only child, Michael Stone continuted to help his parents with their farm chores. Mildred Stone, Michael's mother, wished he could ___7___ a bit more and be that "free dreaming" little boy. On one ___8___ she attempted to talk to him and his father about this, but his dad quickly ___9___, smiled and said, "You want something, ___10___ for it!"
锁存器最主要的作用是计数。
锁存器是对时钟脉冲边沿敏感的器件。
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