題目列表(包括答案和解析)
(2013•揚(yáng)州一模)計(jì)算機(jī)中常用的十六進(jìn)制是一種逢16進(jìn)1的計(jì)數(shù)制,采用數(shù)字0~9和字母A~F共16個計(jì)數(shù)符號,這些符號與十進(jìn)制的數(shù)字的對應(yīng)關(guān)系如下表:
|
| 1 |
| 2 |
| 1 |
| 1×2 |
| 1 |
| 1 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 2×3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 12 |
| 1 |
| 3×4 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 20 |
| 1 |
| 4×5 |
| 1 |
| 4 |
| 1 |
| 5 |
| 1 |
| 56 |
| 1 |
| 7×8 |
| 1 |
| 7 |
| 1 |
| 8 |
| 1 |
| 7×8 |
| 1 |
| 7 |
| 1 |
| 8 |
| 1 |
| 72 |
| 1 |
| 8×9 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 8×9 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| n(n+1) |
| 1 |
| n |
| 1 |
| n+1 |
| 1 |
| n(n+1) |
| 1 |
| n |
| 1 |
| n+1 |
| 1 |
| (a+1)(a+2) |
| 1 |
| (a+2)(a+3) |
| 1 |
| (a+3)(a+4) |
(11·丹東)一組數(shù)據(jù):12,13,15,14,16,18,19,14.則這組數(shù)據(jù)的極差是____________.
| 1 |
| 2 |
| 1 |
| 1×2 |
| 1 |
| 1 |
| 1 |
| 2 |
| 1 |
| 6 |
| 1 |
| 2×3 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 12 |
| 1 |
| 3×4 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 20 |
| 1 |
| 4×5 |
| 1 |
| 4 |
| 1 |
| 5 |
| 1 |
| 56 |
| 1 |
| 72 |
| 1 |
| (a+1)(a+2) |
| 1 |
| (a+2)(a+3) |
| 1 |
| (a+3)(a+4) |
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