变压器油的（）高低可以反映出新油的纯净程度和运行油老化状况。
A.酸值；
B.界面张力值；
C.闪点值；
D.粘度值。
参考答案：B
24．—How do you think I can make up with Jack?
—Set aside you disagree and try to find you have in common.
A．what , what
B．what, that
C．where, whether
D．where, what
教学过程以学习和掌握间接经验为主，直接经验无关紧要。()
