一、选择题(本大题共12小题,每小题5分,共60分.在每小题给出的4个选项中,只有一项符合题目要求)1.若集合M={y｜y=x-2},P={y｜y=x-1},那么M∩P=()(A)(1,+∞)(B)[1,+∞)(C)(0,+∞)(D)[0,+∞)2.设3a=4,3b=12,3c=36,那么数列a,b,c()(A)是等差数列但不是等比数列(B)是等比数列但不是 First, the multiple-choice questions (the title of a total of 12 small questions, each question 5 points, a total of 60 points. Among the four options given in each question, only one meets the requirements of the title) 1. If the collection M = {y |y=x-2}, P={y|y=x-1}, then M∩P=()(A)(1,+∞)(B)[1,+∞)(C)(0 ,+∞)(D)[0,+∞) 2. Let 3a=4, 3b=12, 3c=36, then the sequence a, b, c()(A) is an arithmetic progression but not an array ( B) is a geometric sequence but not