太极拳讲究“以柔克刚，以静制动，以弱胜强”这和下面哪位思想家的观点不谋而合（）A、老

简述问题解决的基本过程。

简述老年人的膳食要求。

采用自动装配机能大大提高插件速度，改善插件（），减轻操作人员的劳动强度，提高生产效率和质量

A、效率

B、速度

C、强度

D、质量

(51) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.

(52) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.

(53) functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.

(54) is the popular LAN developed under the direction of the IEEE802.5.

(55) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

（52）是（）

A.ISO

B.ANSI

C.CCIT

D.IEEE

从学生选课表SC中(其中有学号、课程号、成绩3个字段)查询选修了3门以上课程的学生学号，实现该功能的SELECT语句是______。

A．SELECT 学号 FROM SC GROUP BY 学号 HAVING SUM (*)＞3

B．SELECT 学号 FROM SC GROUP BY 学号 HAVING COUNT(*)＞3

C．SELECT 学号 FROM SC GROUP BY 学号 HAVING 课程号＞3

D．SELECT 学号 FROM SC WHERE 课程号＞3 GROUP BY学号