题目: 下图为“××泉水”商标的一部分,下列说法正确的是[ ]A.该泉水中不含任何化学物质B.其中钙、镁、钾等是指这些元素的单质C.该泉水常温下呈弱酸性D.商标中体积的单位“ml”书写不规范 答案: 答案:D
题型:选择题 We ________ to go into the school unless we are in school uniforms. [ ]A. allow B. are allowed C. are not allowed 查看答案