瘀血所致疼痛的特点是（）
A.胀痛
B.窜痛
C.灼痛
D.刺痛
E.重痛
参考答案：D
— What's he doing?
— She _____ English. [ ]
A. reads
B. speaks
C. is reading
D. is looking
对于高碱度的水，进行石灰处理，处理后的水质应从哪几个方面评价？
