MTO的联动修改不支持计划模式由MTS修改为MTO，指定新的计划跟踪号（）
参考答案：错
试分析上浆率的高低对织造的影响？
— They ____ have prepared for the meeting more carefully.
— But they didn't. What a pity![ ]
A. shouldn't
B. can't
C. may
D. ought to
