A：1cm 2cm 4cm
B：8cm 6cm 4cm
C：12cm 5cm 6cm
D：2cm 3cm 6cm
—Guang'an is a beautiful city, isn't it?
—Yes. There are about two _______ visitors here every week.
扩句练习
①他站起来。
②布鲁斯望着屋顶。
③他叹气
