2010 Hunan Question 1 Single-choice Differentiating 2010_省自主命题(湖南) 1.已知集合 $M=\{1,2,3\}$,$N=\{2,3,4\}$,则 A. $M\subseteq N$B. $N\subseteq M$C. $M\cap N=\{2,3\}$D. $M\cup N=\{1,4\}$ Answer keyC ☆ SaveCan't do it, show the explanation查看原卷 →