题目

No．50 High School is as new as No．48 High School．____, it is more beautiful．        A．If anything      B．If something    C．If necessary      D．If so 答案：A设函数已知，则实数的取值范围是（   ） Ａ．                      Ｂ．     Ｃ．                     Ｄ．