单项选择题

ICMP协议有多种控制报文,当路由器发现IP数据报格式出错时,路由器发出()报文。

A.路由重定向
B.目标不可到达
C.参数问题
D.源抑制

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? Look at the list below. It shows the contents of a Web.? For questions 6-10, decide which part (A-H) each person on the opposite page should visit.? For each question, mark the correct letter (A-H)on your Answer Sheet.? Do not use any letter more than once. CONTENTSA HomeB BusinessC WorldD PeopleE Finance & EconomyF Markets & DataG Science & TechnologyH Books & ArtsByron Stone wants to know the latest news from Mars.
问答题
It is necessary that effective actions should be taken to end the situation.
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