检测SN10-10高压断路操作机构分合闸接触线圈绝缘电阻，其值应不低于（）兆欧。
A、1
B、0.5
C、2
D、3
参考答案：A
—You've done a good job. "
— ____. It's very nice of you to say so.[ ]
A. Thank you
B. No, I don't do well enough
C. You're welcome
D. I don''t think so
在线程中普通优先级的线程，其优先级默认值为【 】。
