单项选择题
A.31mm B.31.05mm C.31.1mm D.23.06mm
A.米尺 B.游标卡尺 C.千分尺 D.以上三种工具都不可以
A.36.08mm B.36.080mm C.36.07mm D.36.008mm
A.67.88mm B.5.67mm C.45.748mm D.36.9mm
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