设全集为R，集合A="{x" | 
≤1}，则CRA等于
| A．{x | 0≤x＜1} | B．{x | 0＜x≤1} |
| C．{x | x＞1或x≤0} | D．{x | x≥1或x＜0} |
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设全集为R，集合A="{x" | ≤1}，则CRA等于
| A．{x | 0≤x＜1} | B．{x | 0＜x≤1} |
| C．{x | x＞1或x≤0} | D．{x | x≥1或x＜0} |
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