重庆巴蜀中学2025届高三12月适应性月考(四)数学答案
数学参考答案·第1页(共9页)数学参考答案一、单项选择题(本大题共8小题,每小题5分,共40分)题号12345678答案ABCADDBA【解析】1.因为xN,解得{12}A,,进而集合A的子集个数为224,故选A.2.对于A,若m∥,∥,则m∥或m,又mn∥,则n∥或n,故A错误;对于B,若l与mn,都不相交,则lm∥,ln∥,则mn∥,这与mn,是异面直线矛盾,故B正确;对于C,若mn,与和所成的角相等,如果nn∥,∥,则mn∥,故C错误;对于D,若m,,则m∥或m,由mn,则n与斜交、垂直、平行均有可能,故D错误,故选B.3.由题...
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