问题 选择题 设集合M={m∈z|﹣3<m<2},N={n∈z|﹣1≤n≤3},则M∩N=[ ]A. {0,1} B. {﹣1,0,1} C. {0,1,2} D. {﹣1,0,1,2} 答案 答案:B