题目

—­­We often climb ­Xiang Shan. Hiking is _____ great fun. —Yeah, when I get to _____ top of a mountain, I feel so satisfied. A．a ; the           B．/ ; a             C．the ; /          D．/ ; the 答案：D具备基本的实验技能是进行科学探究的基础和保证．下列实验操作错误的是（ ）A．倾倒液体B．装入固体粉末C．加热液体D．读取液体体积