题干
---May I go and play with Tom this afternoon, mum?
---No．You can’t go out ______ your homework is being done．
---No．You can’t go out ______ your homework is being done．
A：until
B：after
C：before
D：a
答案(点此获取答案解析）
D
的图像向左平移
个单位，再向上平移1个单位，所得图像的函数解析式是 ( )