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【多选题】
关于钢尺量距的说法，正确的有（ ）。A.
钢尺的名义长度总比实际长度长，量距时会产生尺长误差
B.
钢尺的长度随温度变化，量距测定尺温
C.
钢尺具有弹性，一般量距保持拉力均匀
D.
量距时钢尺偏离定线方向，导致量距结果偏大
E.
钢尺端点对不准属于系统误差，丈量时应尽量认真操作
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