【单选题】放射性 同位素和射线装置失控导致()人以上急性死亡课认定为特别重大辐射事故。
【单选题】I hope you’d better ___________ any more.
A.
don’t play computer games
B.
not to play computer games
C.
to not play computer games
D.
not play computer games
【单选题】-Now that you like the computer so much, why not buy it? -Well, I can't afford ______computer. [ ]
【单选题】2%-4%碳酸氢钠溶液可以用作下列哪类疾病的治疗( )
【多选题】听力原文:股票交易中的竞价方式主要有三种:口头竞价、书面竞价、电脑竞价。故选ACD。 股票交易的竞价方式包括( )。
【单选题】I have a computer,________I don’t play computer games on it.