1.A few minutes later,___ third person came along and began knocking at the window.
问题描述：
1.A few minutes later,___ third person came along and began knocking at the window.
A another B a C the D /
2.一个数的平方根最少有___个
3.若0
答
1 B a third person 又来一个
2 0 个 负数没有平方根
3根号b