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[单选题,7.6分] sin1有2位有效数字的近似值0.84的相对误差限是 ( )
A.0.00625
B.0.00635
C.0.00645
D.0.00655
A.0.00625
B.0.00635
C.0.00645
D.0.00655
参考答案
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