s=left$(“abcd”,2)+Mid$(“efgh”,2,2),则s的值为()。
VB中,mid("A2B4",2,1)的值是()
The two focuses of the education reforms in the mid-1980s were()
设a$=""Microsoft VisualBasic"" b$=Right(a$,5) c$=Mid(a$,1,9) MsgBox a$,34,b$,c$,5 则在弹出的信息框的标题栏中显示的信息是()。
Mid(“I am a student.”,9,2)的返回值是什么?()
Mid(“I am a student.”,9,2)的返回值是什么?()
海岸电台标识由九位数字组成,其结构为:00MIDXXXX,其中前两位数字为0;MID为海上识别数字,目前中国大陆使用的为()
视频媒体有WAV文件格式(*.wav)和MIDI文件格式(*.mid)等。
In mid-ocean,the characteristics of a wave are determined by three factors. What is NOT one of these factors?().
The () returns the pump operating rod to mid position as soon as the helmsman stops turning the wheel.