(b) 用seq, c 指令造出以下數列: "b" "d" "f" "h" "j" "l" "n" "p" "r" "t" "v" "x" "z" "a" "c" "e" "g". "i" "k" "m" "o" "q" "s" "u" "w" "y".
確定！ 回上一頁
