金属喷涂作业时的环境要求是（）
A.地面空旷
B.在专用的密闭喷涂室内
C.无具体要求
参考答案：B
重症猪蛔虫病的病因治疗药物为（）
A.阿苯达唑
B.摘除虫体或手术治疗
C.吡喹酮
D.枸橼酸哌嗉
E.海群生
Speaker A: How about the food I ordered I’ve been waiting for 20 minutes already. Speaker B: （）。
A. I’m very sorry, sir. I will be back with your order in a minute.
B. Ok. I will bring it to you in a moment.
C. Don’t worry. It will be ready soon.
D. Sorry, but I think you should have ordered it earlier.
