单选题

执行完下列代码后,坐标的位置是?( )

import turtle
turtle.penup()#抬起画笔
turtle.goto(-50,0)
turtle.pendown()
turtle.forward(100)
turtle.right(90)
turtle.forward(100)
turtle.done()


A

(0,0)

B

(-50,0)

C

(50,-50)

D

(50,-100)

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