砂按技术要求可分为Ⅰ、Ⅱ、Ⅲ、Ⅳ类。( )
参考答案:错
-----Ken, , but your TV is going too loud.
-----Oh, I’m sorry. I’ll turn it down right now.
A.I’d like to talk with you
B.I’m really tired of this
C.I hate to say this
D.I need your help
《中医外科学》包括的疾病有()
A.创伤
B.皮肤病
C.外科杂病
D.疮疡
E.肛门和直肠疾病