【单选题】【消耗次数：1】
同类型机床按其加工精度的不同又可分为普通精度机床、精密机床和高精度机床，该说法（ ）
①
正确
②
错误
参考答案：
复制
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allow
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be allowed
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allowed
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are
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shall be
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were
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self-reality
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self-evidence
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self-service
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self-concept
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have none
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have no
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have none of the
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reserved for
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anything but
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