题目

结构示意图          所表示的粒子是 A．分子             B．原子            C．阳离子        D．阴离子 答案：C--Only a fool could think there was any advantage for students spending too much time surfing the internet. -- _________. A. So do I                                 B. Neither do I C. I’m sorry, but I don’t agree.                 D. Certainly