任何账户的借方均表示增加，贷方表示减少。()
参考答案：错
Our teacher told us _______ too much time surfing the internet. It's bad for our health. [ ]
A. not to cost
B. not to spend
C. not to pay
D. not to take
慢性骨髓炎时消灭死腔的方法包括
A．碟形手术
B．肌瓣填塞
C．闭式灌洗
D．病灶清除术
E．庆大霉素-骨水泥珠链填塞术
