【简答题】__________ coming to the meeting on Tuesday?Yes,of course I am coming to the meeting on Tuesday.___________
【单选题】在基因诊断技术中,所用的探针DNA分子中必须存在一定量的荧光分子或放射性同位素,后者的作用是( )
【多选题】该写字楼楼梯按结构形式可采用的类型有( )。
【单选题】It is reported that the Voice of China Season Ⅱ ________ to air on Zhejiang TV this coming summer vacation.