答案是一个数字:
Key1
program area_;
var
base,height,area:real;
begin
write('base:');
readln(base);
write('height:');
readln(height);
area:=base*height/2;
writeln('area:',area);
end.
Key2
Line 154, Entry 3.
May the angels to guide your way
key1:Brad Silberling &Nicolas Cage
key2:city
key3:The Olympic Games
key4:The opening ceremony of the Olympic Games the very next day
key5:Baidu Encyclopedia