在没有外力作用下，被加工工件内部的内应力也会影响加工精度。
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对于上级纪律检查机关要求报告调查处理结果的检举、控告、申诉案件，承办的纪律检查机关或有关党组织一般应在（）个月内报告结果。
A. 1
B. 2
C. 3
D. 4
All of the following are distress signals EXCEPT（）.
A. the continuous sounding of any fog signal apparatus
B. giving five or more short and rapid blasts of the whistle
C. firing a gun at intervals of about a minute
D. a barrel with burning oil in it，on deck
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