单项选择题
A.≤1.0%B.≤0.8%C.≤0.5%D.≤0.3%
A.M4±4.0%B.M4±3.0%C.M4±2.0%D.M4±1.0%
A.M3±0.5%B.M3±1.0%C.M3±1.5%D.M3±2.5%
A.8.5%~13.5%B.10.5%~14.5%C.11%~15%D.10.5%~15.5%
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