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问题 单项选择题

关于地震烈度的说法，不正确的是（）。

A.地震烈度分为基本烈度、建筑场地烈度度和设计烈度

B.基本烈度代表一个地区的平均地震烈度

C.建筑场地烈度相对基本烈度可以降低也可以提高

D.设计烈度一般可采用国家批准的基本烈度

答案

参考答案：B

解析：基本烈度代表一个地区的最大地震烈度。

单项选择题

One ofthe main resposibilities of ICMP is to report(1).Although technology has produced increasingly relaible transmission media, errors still exist and must be handled. IP is an (2) protocol. This means that error checking and error control are not a concern of IP. ICMP was designed, in part, to compensate for this shortcoming. Howerver, ICMP does not (3) errors, it simply report them. Error correction is left to the higher-level potocols. Error messages are always sent to the original (4) because the only information available in the datagram about the route is the source and destination IP addresses. ICMP use the source IP address to sent the error massage to the source of the (5).

空白（2）处应选择（）

A.reliable

B.unreliable

C.available

D.unavailable
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名词解释

土地分类码
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