16.请仔細閱读下列程序段: [单选题] *
来源： NOIP题库
16.请仔細閱读下列程序段: [单选题] *
PASCAL 语言
var
a:array[1..3,1..4] of integer;
b:array[1..4,1..3] of integer;
x,y:integer;
begin
for x:=1 to 3 do
for y:=1 to 4 do
a[x,y]:=x-y;
for x:=4 downto 1 do
for y:=1 to 3 do
b[x,y]:=a[y,x];
writeln(b[3,2]);
end.