无球技术在足球比赛中非常重要,它包括各种形式的起动、急停、转身、变向、晃动和跳跃。
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当远动操作异常时改由当地或手动操作,须有生产调度员的命令方可进行。
A. 正确
B. 错误
秦朝时期的军国大事一般先由丞相、御史大夫和诸卿朝议,最后由皇帝裁决。这一做法使()
A. 中央强化了对地方的控制
B. 君主专制造成的失误有所减少
C. 君权在事实上遭到了弱化
D. 民主观念开始渗透到政治体制
企业信用策略中的消费者信用主要包括未结算帐目信用,长期付款信用和信用卡等类型。()
A. 正确
B. 错误
Which three statements are true about the data traffic characteristics of voice traffic? ()
A. latency must be kept below 150 ms
B. latency is not a concern as long as jitter is kept below 30 ms
C. voice packets do not require a specific type of queuing
D. voice packets are rather small
E. voice packets require TCP for rapid retransmission of dropped packets
F. voice packets require a fairly constant bandwidth reserved for voice control traffic as well as forthe voice payload