A:x2−2x+y2=0
B:x2+2x+y2=0
C:x2+y2+2y=0
D:x2+y2−2y=0
—What do you think of your new job, Jim?
—It's _______. I do exactly the same thing every day.
正方形的边长是它周长的 14 。(判断对错)