运行下面程序,其输出结果(str2的值)为【 】。 Dim str l,str2 As String Dim I As Integer str l= “abcdef” For l To Len (strl) Step2 str2=UCase (Mid (strl,I ,1))十str2 Next MsgBoxstr2
【单选题】Our culture has caused most Americans to assume not only that our language is universal but that the gestures we use are understood by everyone. We do not realize that waving good-bye is the way to su...