题目

—What is Jenny doing? —She is ________ the table.A. sets B. setingC. setting D. to set 答案：【答案】C【解析】句意“-杰妮正在做什么？-她正在摆餐桌”。根据What is Jenny doing可知，用现在进行时回答，且set的现在分词为setting，故选C。下列显微镜操作，正确的是（　　）A．对光B．取镜C．观察D．降镜筒