A.0.2-0.3mm B.0.1-0.2mm C.0.3-0.4mm D.0.4-0.5mm
A.推動(dòng)B.發(fā)展C.支撐D.競(jìng)爭(zhēng)
A.性能B.技術(shù)C.特點(diǎn)D.都不對(duì)