银汞合金
A．固化时收缩B．固化期15分钟C．固化期轻膨胀D．与牙齿有化学结合E．固化时体积无变化
参考答案：C
读下列句子，并对其进行排序。
( ) That's old.
( ) It's about five hundred years old.
( ) How old is the Palace Museum?
( ) Sure!
( ) May I have your camera?
( ) I want to take of picture here.
治疗多动性障碍时，患儿伴有癫痫发作，首先考虑使用
A．匹莫林B．哌醋甲酯(利他林)C．巴比妥类D．盐酸丙咪嗪E．丙戊酸钠
