题目

若命题“∃x0∈R，使x＋(a－1)x0＋1<0”是假命题，则实数a的取值范围为( ) A．1≤a≤3                      B．－1≤a≤3 C．－3≤a≤3                    D．－1≤a≤1 答案：BI would rather ________ shopping on Sunday afternoon.A.goingB.wentC.goD.to go