A.100mm*10mm
B.200mm*10mm
C.200mm*20mm
D.50mm*40mm
第5题
A.95mm2
B.35mm2
C.70mm2
D.150mm2
第6题
A.100mm*10mm,40mm*4mm
B.150mm*10mm,40mm*4mm
C.100mm*10mm,50mm*5mm
D.150mm*10mm,50mm*5mm
第9题
A.100mm*10mm
B.100mm*20mm
C.50mm*10mm
D.50mm*20mm
第10题
A.100mm*10mm
B.20mm*2mm
C.30mm*3mm
D.40mm*4mm
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