設(shè)點(diǎn)A端為0,點(diǎn)B端為8,再刻上1(C點(diǎn)),2(D點(diǎn)),3(E點(diǎn)),4(F點(diǎn))當(dāng)然直接可以量出1,2,3,4,8用EB=5,DB=6,CB=7
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設(shè)點(diǎn)A端為0,點(diǎn)B端為8,再刻上1(C點(diǎn)),2(D點(diǎn)),3(E點(diǎn)),4(F點(diǎn))當(dāng)然直接可以量出1,2,3,4,8用EB=5,DB=6,CB=7