A:大于
B:等于
C:小于
解方程
①8x÷0.7=8;
② 17 m+ 14 = 14 m;
③0.4:x=(1+ 18 ):5.
①卒不起意尽失其度 ②卒皆夜惊恐
③于是荆轲遂就车而去 ④轲自知事不就
They are doing their homework.(对划线部分提问)____