题目

The problem facing us is so serious that we have to ______ it first. A . take interest               B . deal with C . make with                   D . work on 答案：B11．关于x的一元二次方程（a-1）x2-2x+3=0没有实数根，则整数a的最小值是（　　）A．0B．1C．2D．3