题目

用简便方法计算：  (-3.59)×(-)-2.41×(-)+6×(-); 答案：原式=- ×（-3.59-2.41+6）=-（-6+6）=0;. 16. So far there have been hundreds of _______ infected with H1N1in our province. A. points         B. cases          C. examples        D. diseases