题目

With mobile phones, these problems increase. Many times you 【1】 (talk) with a friend, only for your friend to interrupt the conversation to answer a call. 【2】some reason, a typical mobile phone call is nearly always give greater 【3】 (important) than a face-to-face conversation. Yet, once again, most mobile phone calls are about rather small matters. When 【4】 (ask) later what the call was about, your friend always answers, “Oh, nothing really”. If the call was really about ‘nothing’, then why was it so important as to interrupt your conversation and waste your precious t3．下列各种微粒的表示方法中，不正确的是（　　）A．碳-12的原子符号：12 6CB．次氯酸分子的结构式：H-O-ClC．硫离子的电子排布式为：1s22s22p63s23p6D．二氧化硅的分子式：SiO2