题目

―A lovely day, isn’t it?―Yes. I love        when the weather is like this. Why not have our lunch outside?A．this                            B．it                        C．one                     D．that 答案：B沉迷于电子游戏，会导致眼球的某个结构凸度增加而形成近视．这一结构是（　　） A、视网膜B、晶状体C、玻璃体D、角膜