典型的高炉喷煤工艺流程。
参考答案：
中速磨制粉--热风炉废气+烟气炉--大布袋收粉--并联罐--直接喷吹--单管路+分配器。
一般生活中，纹的眉色应（）头发的颜色。
A、浅于
B、同于
C、略深于
D、深于
She couldn't find her pen. She didn't remember _____. [ ]
A. whose it was
B. where it was
C. what it was
D. when it was
