数字式电压表与模拟式电压表相比，具有（）精度、测量速度（）、输入阻抗（）、读数直接、准确和自动化程度高等特点。
参考答案：较高的；快；高
Why should we elect him _________mayor? I mean last year he was elected as _________ member of the Congress and he has failed to keep any promise he made during the election.
A．a; /
B．the; the
C．a; the
D．/; a
下 * * 种裂纹中，（）裂纹危害性最大。
A.冷
B.热
C.延迟
