开标应在招标文件确定的提交投标文件截止时间的（）公开进行。
A.1天内
B.2天内
C.3天内
D.同一时间
参考答案：D
排烟器具份固定式排烟设施和移动式排烟设备两大类。
— When shall we meet again next week — （）day is possible. It's no problem with me.
A. Either
B. Neither
C. Every
D. Any
