事实上，这个系统通常会阻止任何想要注册他们不应该选的课程的人，也就是那些没有选必选先修课程的学生。
In fact, usually the system blocks anyone trying to sign up for a class they shouldn't be taking, who hasn't taken the courses you are required to do first as prerequisites.
存在三类权限请求：必选、可选和被拒绝。
Three kinds of permission requests exist: required, optional, and refused.
为高冲击运动如跑步和骑马等必选之文胸。
Ideal for high impact activities such as running, jogging and horseback riding.
顶点着色器是必选的。
必选的项元数据。
翼龙钉刺- 必选，为了引出毒液钉刺和黑蚀箭。
Wyvern Sting - Required . This is a prerequisite for Noxious Stings and Black Arrow.
运行时确定必选权限集是否为允许的权限集的子集。
The runtime determines whether the set of required permissions is a subset of the allowed permission set.
JSTL out标记只具有一个必选属性，即value属性。
The JSTL out tag has just one required attribute, the value attribute.
jsp容器如何知道自定义标记的哪些属性是必选的哪些是可选的？
How does the JSP container know which attributes of a custom tag are required and which are not?
在调用函数时，请确保始终包括圆括号和任何必选参数。
When calling a function, make sure that you always include the parentheses and any required arguments.
这个路由机制支持可选和必选参数、默认值、嵌套路由以及回调函数。
This routing mechanism supports (among other things) optional and mandatory parameters, default values, nested routes, and callback functions.
是职业经理人提升自身价值及改变团队绩效的必选课程之一。
Is occupation managers to enhance their own value and changing the team performance required of the curriculum.
这是我推荐给摄影新手的第一本书，也是我温故知新时的必选。
It is the first one I recommend to new photographers and it is one that I refer to when I need a bit of a refresher.
如果您决定去与生铁，请务必选择最佳的高质量上釉的生铁。
If you decide to go with cast iron, be sure to choose the best high quality enameled cast iron.
由于医患关系在治疗中有关键作用，务必选择相处融洽的医生。
Focusing on finding someone that one feels comfortable working with is necessary, as the relationship with the doctor or therapist is critical to the recovery process.
特别适合于双压气动系统，是高低压管网优化必选的精细节能产品。
It is particularly suitable for dual-pressure pneumatic system, which is precise energy-saving product required in high and low pressure pipe network optimization.
必选项。指定的字符，字符串或正则表达式，作为分解用的分隔符。
Required. Specifies the character, regular expression, or substring that is used to determine where to split the string.
互联网已成为国民经济的神经网络，上网是现代企业成功的必选项。
Internet has become the nervous network of national economy, and establishing website is the must for the success of the modern enterprises.
这还可以被看作是这个拓扑中的一个插槽，以后迟早会是一个必选项。
This may also be thought of as a slot in the topology that must be selected at a later point in time.
因此，水资源的处理和回用已经成为解决水资源短缺的必选策略之一。
Therefore, water treatment and recycling has become one of the chosen strategy to solve the shortage of water resources.
目的：研究二项必选数字记忆测验(二项测验)鉴别伪装智力低下的实证效度。
Objective: To study the validity of Binomial Forced-Choice Digit Memory Test (BFDMT) in detecting dissimulation of intellectual deficit.
SOAPmustUnderstand属性用于指出一个头条目是必选的还是可选的。
The SOAP mustUnderstand attribute is used to indicate whether a header entry is mandatory or optional.
（主持人开场白台词）小时候很多学校的合唱，《团结就是力量》是必选歌曲呢。
Many schools as a child of the chorus, "unity is strength" is will choose songs?
因为我已辍学且不必选修一般的课程，我决定上一堂文字艺术课程来学习文字艺术。
Because I had dropped out and didn't have to take the normal classes, I decided to take a calligraphy class to learn how to do this.
由于开销的原因，如果您只需要在应用程序的各层之间进行通信，就不必选择Web服务。
Because of overhead, you don't want to choose Web services when you just want to communicate between layers of an application.
当你从红专厂正门走进来，就会看见这栋高高的建筑。可以说，它是游人参观的必选之地。
When you walk in Redtory from the front door, this tall building will appear in front of you. This is the place where you will not want to miss.
穿喉-必选，就为了可以给宠物多一些集中值也值得点出此天赋，详细资料请参考宠物章节。
Go for the Throat - Required. See the pet section for more details, but obtaining more focus for pets is now a worthwhile pursuit.
根据哈桑的语类结构潜势理论，语类结构由必选成分和可选成分及其重复成分和顺序组成。
According to Hasan's generic structure potential theory, a generic structure is constituted of the obligatory elements, the optional elements, their recursive elements and their sequence.
根据哈桑的语类结构潜势理论，语类结构由必选成分和可选成分及其重复成分和顺序组成。
According to Hasan's generic structure potential theory, a generic structure is constituted of the obligatory elements, the optional elements, their recursive elements and their sequence.
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