题目

This is a photo of Ben’s family. He has a big family. Look! Ben’s grandparents are on the sofa. They are workers. They are old, so they don’t work now. Ben’s father is a doctor. He works in a hospital. He often drives his car to work. Ben’s mother is a teacher. She teaches English in our school. The man in white is Ben’s uncle. The young woman in red is Ben’s aunt. They are office workers. Ben’s family live in Beijing now. Ben and I are classmates. We are good friends.根据短文内容，选择正确答案。【1】What does Ben’s grandmother do?A.A doctor. B.A teacher. C.A 图1为地壳中含量最多的金属元素的某粒子结构示意图图2为一套实验室制取氧气的发生装置（1）图1所示元素的原子最外层电子数为_____，图1所示粒子的化学符号为_____。（2）图2所示相应的文字表达式_____。