接地距离保护在受端母线经电阻三相短路时，不会失去方向性。
A. 正确
B. 错误
依据心理学相关知识，教师这种做法符合什么规律?（ ）[不定项选择题]根据材料，回答问问题。教师在板书生字时，常把形近字的相同部分与相异部分分别用白色和红色的粉笔写出来。你是否赞成这种做法?（ ）[单选题]
患者，男，50岁。右下肢骨折，已用石膏绷带固定。内服药物宜首选（）
A. 土鳖虫
B. 桃仁
C. 红花
D. 丹参
E. 莪术
Which of the following is a characteristic of a data center core？（）
A. Server-to-server traffic always remains in the core layer.
B. The recommended practice is for the core infrastructure to be in Layer 3.
C. The boundary between Layer 2 and Layer 3 should be implemented in the aggregation layer.
D. The Cisco Express Forwarding hashing algorithm is the default， based on the IP address andLayer 4 port.
E. Core layer should run BGP along with an IGP because iBGP has a lower administrativedistance than any IG
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