《中华人民共和国合同法》规定，出现下列哪些情形时，合同无效。（）
A. 因重大误解订立的
B. 恶意串通，损害国家、集体或者第三人利益
C. 以合法形式掩盖非法目的
D. 损害社会公共利益
E. 在订立合同时显失公平的
查看答案
What is the default behaviour of PIM-SSM If there are multiple equal-cost paths to the multicast source？（）
A. It will send the join only to the neighbor with the highest IP address.
B. It will send the join only to the neighbor with the lowest IP address.
C. It will send the join in a round-robin fashion across all neighbors.
D. It will send the join to all neighbors.
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