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【简答题】
数轴的三要素是______、______、______．
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反馈参考答案：
举一反三
【简答题】Jim likes playing in a river. But there 1 a river near his new house . He is not very happy. One day , he asks his mother . 2 a river near here?" "No, there isn't. his mother says. "But 3 new house ha...
【简答题】基本偏差固定不变的孔公差带,与不同基本偏差的轴的公差带形成各种配合的配合制度称为__________。
【简答题】基本偏差固定不变的轴的公差带,与不同基本偏差的孔的公差带形成各种配合的配合制度称为__________。
【简答题】Time is like a river, the left bank is unable to forget the memories, right is worth grasp the youth, the middle of the fast flowing, is the sad young faint. There are many good things, buttruly belon...
【简答题】阅读理解。 A frog (青蛙) is born in a small river．When he is young,the river is his home．He doesn't know his parents,but he has hundreds of brothers and sisters．He swims about and plays with them all the tim...
【简答题】编写程序,统计文件 file.txt 中内容的行数和字符数。
【单选题】人体细胞内的染色体，正常来源是： [ ]
A.
一半来自父方、一半来自母方
B.
一半以上来自父方，一半以下来自母方
C.
一半以下来自父方、一半以上来自母方
D.
与父亲相似的人，来自父方多，与母亲相似的人，来自母方多
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