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一、选择题１设Ｍ、Ｐ是两个非空集合，定义Ｍ与Ｐ的差集为Ｍ－Ｐ＝｛ｘ｜ｘ∈Ｍ且ｘＰ｝，则Ｍ－（Ｍ－Ｐ）等于（）．（Ａ）Ｐ（Ｂ）Ｍ∩Ｐ（Ｃ）Ｍ∪Ｐ（Ｄ）Ｍ２函数ｙ＝ｌｏｇ（２ｘ－１）３ｘ－２的定义域为（）．（Ａ）（２３，＋∞）（Ｂ）（１２，＋∞）（...
First, multiple-choice questions 1 Let M, P be two non-empty sets, and define the difference set between M and P as M-P = {x | x∈M and xP}, then M- (M-P) (). (A) P (B) M∩P (C) M∪P (D) M2 The function y = log (2x-1) 3x-2 has the domain (). (A) (23, + ∞) (B) (12, + ∞) (...