尼古丁00144
“选修课”的英文：optional course
一、optional course 读法 英 [ˈɔpʃənl kɔː(r)s] 美 [ˈɑpʃənəl kɔː(r)s]
意思是：选修课
二、optional 读法 英 ['ɒpʃ(ə)n(ə)l] 美 ['ɑpʃənl]
作形容词的意思是：可选择的，随意的
短语：
1、optional parameter 任选参数，可选参数
2、optional exercise 自选动作
3、optional equipment 【计】附加设备；任选设备
4、optional item 可选择项目
例句：
You took an optional course this semester, didn't you? How is it going?
你这学期选了一门选修课是吗？情况怎么样？
optional的近义词：free
free 读法 英 [friː] 美 [fri]
1、作形容词的意思是：免费的；自由的，不受约束的；[化学] 游离的
2、作及物动词的意思：使自由，解放；释放
3、作副词的意思是： 自由地；免费
free的用法：
1、free作“免费的,无偿的”“空闲的; 不忙的”解时,无比较级和最高级形式。
2、free作“摆脱…的; 不受…影响的”“大方的,慷慨的”解时,只用作表语。
3、free在句中可用作定语、表语或补语。用作定语时,一般后置,偶尔也可前置; 用作表语时,其后可接动词不定式,也可接from、in、of、with等引起的短语。
4、free用作副词时有两个意思:一是指“免费地”; 二是指“自由地,无拘束地”。free引申可作“松,松弛”解。
维尼yuan
Abstract: The present paper mainly includes the student to choose the class system plan analysis and the network planning, this system is a typical information management system (MIS), its development mainly includes the backstage database the establishment and the maintenance as well as front end the application procedure development two aspects. Establishes the data uniformity and the integrity regarding former request is strong, the data security good storehouse. But requests the application procedure function regarding latter completely, is easy to use and so on the characteristic
布川依夫
Summary : This paper analyses the main programme including student course choices with network planning, the system is a typical management information system (MIS), including its main development background to the establishment and maintenance of the database and front-end application development 2. The request for the establishment of strong data consistency and integrity, good for the security of the data. For the latter request applications functions,.It is easy to use.
兔了里个酱酱
This article is an analysis of the student course selection system and its web application planning. This system is a typical MIS, its development includes two main portions: the development and maintenance of a back-end database, and the development of a front-end application. The requirement for the first portion is to establish a database with consistency, integrity, and security. The requirement for the latter portion is to develope an application that's complete in functionality and easy to use.. The request for the establishment of strong data consistency and integrity, good for the security of the data. For the latter request applications functions, such as easy to use features.
