During normal cluster processing in a five-node cluster，one of the nodes unexpectedly crashes. A review of the system dump indicates that a DMS timeout has occurred. The cluster is configured to use disk heartbeats as a Point-to-Point network. What should be done to address the problem with this configuration？（）
A、 More disk should be added to the disk heartbeat network，allowing more paths for heartbeats.
B、 An RS232 network is required to supply a more robust non-IP network when disk heartbeating is implemented.
C、 The network tunable parameters should be changed to allow more missed heartbeats since the disks may be heavily used.
D、 An error notification method is required to determine the action to take in response to a failure of the disk heartbeat.
如支行当日有对私客户结汇40000美元，则该支行当日（）。
A、需要进行平盘，向分行卖出40000美元
B、需要进行平盘，向分行买入40000美元
C、不需要进行平盘
D、需要进行平盘，向外汇交易中心卖出40000美元
维生素B1缺乏引起心力衰竭的主要机制
A.兴奋收缩偶联障碍
B.心肌能量储存障碍
C.心肌能量生成障碍
D.心肌能量利用障碍
E.心肌收缩蛋白大量破坏
煤矿采掘工作面遇到何种情况时必须进行探放水工作？
(三级)中国邮政代理代办的代理放号（注册）业务有代理移动电话放号、_____、寻呼放号、代理互联网注册等。
工作A悲观估计需要36天完成，很有可能21天完成，乐观估计只用6天完成，那么工作A从16天到26天之间完成的可能性是（）
A、55.7%
B、68.26%
C、95.46%
D、99.73%