问题
填空题
用A、B两刻度尺测同一木块的长度，就分度值而言， 尺精密些；就使用方法而言， 尺不正确。从用法正确的尺上读出此木块的长度为 cm。
答案
A；B；2.24±0.03
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用A、B两刻度尺测同一木块的长度，就分度值而言， 尺精密些；就使用方法而言， 尺不正确。从用法正确的尺上读出此木块的长度为 cm。
A；B；2.24±0.03
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