小年糕lc
“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。
L1ttleJuan
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
