耳硬化中,少数病人在头部活动后出现轻度短暂眩晕,可能与__________或__________有关。
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结构化分析(SA)是软件开发需求分析阶段所使用的方法,()不是SA所使用的工具。
A. DFD图
B. PAD图
C. 结构化英语
D. 判定表
分档取料能合理使用原料,提高其使用价值;还能提高菜肴质量,突出烹调的特×色。
A. 正确
B. 错误
某班有50名学生,考试后老师想迅速计算出所有学生的平均分,可以使用的函数是()
A. MAX
B. MIN
C. SUM
D. AVERAGE
Which two statements are true when the extended system ID feature is enabled? ()
A. The BID is made up of the bridge priority value(two bytes) and bridge MAC address (six bytes).
B. The BID is made up of the bridge priority (four bits), the system ID (12 bits), and a bridge MAC address (48 bits).
C. The BID is made up of the system ID (six bytes) and bridge priority value (two bytes).
D. The system ID value is the VLAN ID (VID).
E. The system ID value is a unique MAC address allocated from a pool of MAC addresses assigned to the switch or module.
F. The system ID value is a hex number used to measure the preference of a bridge in the spanning-tree algorithm.