选煤厂必须建立、健全安全生产奖惩制度和安全生产办公会议制度等各项规章制度。
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增压风机振动过大的原因若是（），可断开主电动机或控制风机使其脱开失速范围。
Which statement about WSA access logs that are to be processed by sawmill for cisco ironport istrue？（）
A. the default log format can be used
B. the fields"%XC%X n" must be appended to the default access log format
C. any log format can beused ， but all WSAs must use the same format
D. any log format can be used. And different WSAs may use different format
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