题干
When you read the book, you’d better make a mark _____ you have any questions.
A：at which
B：at where
C：the place where
D：where
答案(点此获取答案解析）
D
A：at which
B：at where
C：the place where
D：where
,函数
的图像向右平移
个单位
的最小值是（ ）