当传热速度与垂直烧结速度不同步时,会引起()增加。
A、焙烧时间过长
B、燃烧带厚度
C、燃烧温度
D、废气温度上升
参考答案:B
— She didn't come to school yesterday, did she?
— ______, though she was not feeling very well.[ ]
A. No, she didn't
B. Yes, she was
C. No, she wasn't
D. Yes, she did
两泵串联使用要注意哪些问题?