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问题 单项选择题 A1/A2型题

下列各项为口角炎常见临床表现，除外（）

A.皮肤、黏膜充血

B.黏膜丘疹

C.口角湿白

D.口角皲裂

E.口角糜烂

答案

参考答案：B

解析：

口角炎临床表现以干裂、糜烂及结痂、水肿为主，无黏膜丘疹。

单项选择题

SOCKS is a genetic proxy protocol for TCP/IP-based networking, applications. SOCKS includes two (21) , the SOCKS server and the SOCKS client. The SOCKS server is implemented at the application layer. The SOCKS client is implemented between applications and the (22) layer. When an application client needs to connect to an application server, the client connects to a SOCKS proxy server. The proxy server connects to the application server instead of the client, and (23) data between the client and the application server. For the application server, the proxy server is the (24) . SOCKS is also one of the popular (25) to network firewalls. Because of its simplicity and flexibility, SOCKS has been used as genetic application proxy in virtual private network (VPN), and for extranet applications.

A．relays

B．replaces

C．replays

D．repeals
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单项选择题

运营商在考虑覆盖概率时，通常会有如“95%的地点，99%的时间可通”类似的说法，这里的95%是指（）

A、区域覆盖概率

B、边缘覆盖概率

C、接通率

D、前面三种都不是
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