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血涂片染色后红细胞染成蓝绿色和白细胞核染成紫色,可在下述何种情况时出现A.缓冲液在血片上放置过久
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Listen to a talk about an English learner's learning experience and fill in the blank in each sentence based on what you hear.Michal lives in Poland, and Polish is his (1)______ language.Michal started learning English by (2)______________the Beatles.Michal is delighted and feels(3)_______ when he listens to the Beatles because he (4)___________ a lot better.Besides listening to (5)__________, Michal also reads (6)______________books in English.Michal made a great breakthrough in learning the English language after successfully finishing (7)______ the first (8)______________.According to Michal, English learning brings him (9)__________ and (10)____________.
用计算机解决问题时,首先应该确定程序“做什么?”,然后再确定程序“如何做?”请问“做什么?”是属于用计算机解决问题的哪一个步骤?( )
有以下关于算法描述正确的是()。
在调试程序过程中,下列哪一种错误是计算机检查不出来的?( )
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