诊断化脓性腹膜炎的主要依据是()
A.病人是否有脉快和休克
B.白细胞计数增高
C.腹部有无压痛、反跳痛、肌紧张
D.腹腔穿刺结果
E.腹部X线摄片结果
参考答案:C
---How about seeing the new movie at the cinema tonight?
--- ______, but I’ve got to go over my notes for tomorrow’s exam.
A.All right
B.Sounds great
C.I can’t
D.No, I’m terribly sorry
精馏塔主要用途是经初馏、酸洗、吹苯后的()再精馏塔内进行蒸馏,提取()。