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问题 单项选择题 A2型题

患者，男性，60岁。左耳发现似核桃大小肿物1年，在唾液专家门诊诊断为腮腺腺样囊性癌。下面检查方法不恰当的是（）

A.拍胸片

B.腮腺造影

C.CT

D.切取组织活检术

E.细针吸细胞学检查

答案

参考答案：D

问答题 简答题

有学者认为：l9世纪中期以前，日本仍是一个封闭落后的国家，明治给新使它绝处逢生。19世纪末期，中国也掀起了一场救亡图存的戊戌变法运动，结果却失败了。

19世纪中期，日本出现了哪些社会危机？
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单项选择题

The de facto standard application program interface （API）for TCP/IP applications is the "sockets" interface. Although this API was developed for （1）in the early 1980s. it has also been implemented on a wide variety of non-Unix systems. TCP/IP（2） written using the sockets API have in the past enjoyed a high degree of portability and we would like the same（3） with IPv6 applications. But changes are required to the sockets API to support IPv6 and this memo describes these changes. These include a new socket address structure to carry IPv6 （4）, new address conversion functions, and some new socket options. These extensions are designed to provide Access to the basic IPv6 features required by TCP and UDP applications, including multicasting, while introducing a minimum of change into the system and providing complete （5）for existing IPv4 applications.

（5）是（）

A. availability

B. compatibility

C. capability

D. reliability
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