单选题

运行下方代码段,输出的结果是(    )。

import turtle
def draw():
    turtle.fd(80)
    turtle.left(90)
    turtle.fd(40)
    turtle.left(90)
    turtle.fd(80)
    turtle. hideturtle ()
    for i in range(4):
        turtle.left(90)
draw()
A

B

C

D

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