男，35岁，劳动时突发剧烈头痛、呕吐，一度意识不清，醒后颈枕部疼痛，右侧眼睑下垂，右

正常成人脾长径不超过（）

A.6cm

B.8cm

C.10cm

D.12cm

E.14cm

辐射式卵裂

十一届三中全会在中共历史上具有非常突出的地位。请回答：

（1）此次会议的主要内容是什么？（9分）

（2）此次会议有什么伟大历史意义?(6分)

男性，24岁。因四肢麻木、瘫痪9天入院，诊断为慢性吉兰-巴雷综合征或慢性炎症性脱髓鞘性多神经病（CIDP）。下列有关CIDP的描述，不正确的是（）

A.发病后症状达到高峰的时间超过2个月

B.一般有前驱症状

C.感觉和运动同时受累

D.多有缓解复发

E.周围神经病理检查可以发现慢性脱髓鞘改变

IPv6 is short for "Internet Protocol Version 6". IPv6 is the "next generation" protocol designed by the IETF to ( 71 ) the current version Internet Protocol,IP Version 4("IPv4").
Most of today’s Internet uses IPv4, which is now more than twenty years old． IPv4 has been (72) resilient in spite of its age, but it is beginning to have problems. Most importantly, there is a growing ( 73 ) Of IPv4 addresses，which are needed by all new machines added to the Internet.IPv6 fixes a number of problems in IPv4，such as the (74) number of available IPv4 addresses. It also adds many improvements to IPv4 in areas such as routing and network autoconfiguration.IPv6 is expected to gradually replace IPv4，with the two coexisting for a number of years during a transition (75) .

A．shortage

B．lack

C．deficiency

D．scarcity