小官极速搜题练习工具
轧去棉籽的棉花用于手工纺纱或作絮棉之前,需经过弹松,这一工序称为____。A.弹棉B.纺棉
【正确答案】A
Copyright © 2026 极搜搜 | Powered by Specia WordPress Theme 沪ICP备2021005711号-2