肾虚牙痛
参考答案：
牙龈隐隐作痛，时作时息，口不臭，脉搏细或齿浮动者，为肾虚牙痛。
________Beijing you see today is quite ________ different city from what it used to be.
A．The; /
B．/; the
C．The; a
D．A; a
电缆耐压试验结束应采取哪些措施？
