交流电桥主要用于测量的范围不包括（）
A.交流等效电阻及其时间常数
B.电容及其介质损耗
C.低值精密电阻的阻值
D.自感及其线圈品质因数
参考答案：C
With the help of the firefighters, the people caught in the fire managed to escape to the safe place, ______.
A．hungrily and frightened
B．hungry and frightened
C．hungrily and frightening
D．hungry and frightening
试述油气聚集带分布的有利区域。
