单词	and operatlon
释义	and operatlon 与运算
随便看	improper competition improper compound improper concepts of mathematics improper conduct improper conic improper connection improper constituent improper constraint improper consumption improper contributions improper convex function improper correction Improper cost and expense management Improper defence improper deportment improper dichotomy improper diet improper diet and overtiredness improper dietary disorders improper differentiability improper disclosure of audit finding improper distribution improper divergence improper double integral improper drive structure