A.10mm B.12mm C.15mm D.20mm
A.1/1000,且不應(yīng)大于25mm B.1/1500,且不應(yīng)大于25mm C.1/2000,且不應(yīng)大于25mm D.1/2500,且不應(yīng)大于25mm
A.1/1000+10,且不應(yīng)大25mm B.1/1500+10,且不應(yīng)大于25mm C.1/2000+10,且不應(yīng)大于25mm D.1/2500+10,且不應(yīng)大于25mm