题目

We should have a good habit of _____ the water tap after washing our hands.A. turning off B. turning on C. turning to 答案：【答案】A【解析】句意：洗完手后，我们应该有一个关水龙头的好习惯。A. turning off 关掉；B. turning on打开；C. turning to转向。根据下文after washing our hands可知上文是关掉水龙头。根据题意，故选A。.要制作一个圆柱形油漆桶需要多少铁皮，就是求它的表面积． ．（判断对错）