单选题

执行完下列Python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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