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写出一个比大的负数: 。

写出一个比6ec8aac122bd4f6e大的负数:         

 

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计算:6ec8aac122bd4f6e6ec8aac122bd4f6e6ec8aac122bd4f6e6ec8aac122bd4f6e6ec8aac122bd4f6e,··· ···

归纳各计算结果中的个位数字规律,猜测6ec8aac122bd4f6e的个位数字是         (     )

6ec8aac122bd4f6e) 1        (6ec8aac122bd4f6e) 3        (6ec8aac122bd4f6e) 7        (6ec8aac122bd4f6e) 5

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

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若a+b<0,ab<0,则下列判断正确的是                          (     )

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C.a、b异号且负数的绝对值大  D.a、b异号且正数的绝对值大

 

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 如图数轴上的A、B两点分别表示有理数a、b,下列式子中不正确的是 (     )

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