按统计特性分，故障可分为（）
A.偶然故障和耗损故障
B.致命性故障和非致命性故障
C.独立故障和从属故障
D.偶然故障和从属故障
参考答案：C
It was considerate _____ you not to play the piano while I was asleep.
A．of
B．for
C．to
D．from
商业银行的经营原则是什么？如何进行协调？
