拜仁的哪名球员创造了欧冠赛场上10.2秒的最快进球记录（）
A. 巴拉克
B. 马凯
C. 里贝里
D. 盖德穆勒
Which two statements about the DiffServ model are true？（）
A. a class can be identified as a single application， multiple applications with similar service needs，or be based on the source or destination IP address
B. a drawback of the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs）
C. DiffServ uses the DiffServ field in the MAC header to mark frames into behavior
D. the DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS field
E. the first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol （RSVP） value
F. the primary goal of DiffServ is scalability
水泵运行中，开关红灯不亮（灯泡不坏），该泵可能停不下来。
A. 正确
B. 错误
怜悯众苦，不觉油然而生，而己身顾不得，且人缘稀薄，要怎样修养才能达到悯救众苦，以免自误误人？
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