How to select first a element of li with CSS?
如何选择第一个元素的CSS李？
moduletable class applied to a element of no set width that surrounds the module output.
整个模块会被一个不定宽度的，class名称为.moduletable的包裹起来，模块标题通过输出。
An Android application may be launched to process a element of data or respond to an event, such as the receipt of a text message.
Android应用程序可用于处理一个数据元素，或者对一个事件(例如接收文本消息)做出响应。
The isotopes of a given element have the same chemical properties but slightly different physical properties.
一个特定元素的同位素具有相同的化学特征，但在物理性质上有一些细微差异。
This proposition, which we term the increasing-disadvantage model, is a core element of the popular glass ceiling metaphor.
这个命题，我们称之为“增长-劣势模式”，是流行的玻璃天花板隐喻的核心元素。
Other scientists perform the specialized work of peer review also for free, because it is a central element in the acquisition of status and the production of scientific knowledge.
其他科学家从事同行评议的专业工作也是免费的，因为这是获得学术地位和产出科学知识的一个核心因素。
Earth's crust contains very little of this element, but most asteroids contain a lot more.
地壳中含有的这种元素很少，但大多数小行星上的要多得多。
It also adds the element of artistic creativity to attract a new pool of students who may not see themselves as "math people".
它还增加了艺术创造的元素，来吸引新的一批可能不认为自己是“学数学的料”的学生。
For example, a gap just below aluminum suggested a new element would be found with properties analogous to those of aluminum.
例如，就在铝下面有一个空位，这表明还有一个性质和铝类似的新元素存在。
Element 43 has a very fast rate of decay.
43号元素的衰变速度非常快。
Peacock feathers should never be brought on stage, either as a costume element, prop or part of a set as chaos will ensue.
孔雀羽毛应该永远不带上舞台，不能作为服装元素，道具或者布景的一部分，否则混乱将接踵而来。
It signals a change in what has, until now, been a key element of scientific endeavor.
这预示着科学探索中关键因素发生了变化。
When the children have a larger number of toys there seems to be a distraction element, and when children are distracted they do not learn or play well.
当孩子们有更多的玩具时，似乎就会有分心的因素，而当孩子们分心时就不能很好地学习或玩耍。
A new Pew Research Center analysis highlights the implications of these changes for the most basic element of their lives—where they call home.
皮尤研究中心的一项新分析强调了这些变化对他们生活基本要素的影响，即他们称之为家的地方。
A successful campaign should have an element of surprise.
成功的宣传活动需有出奇制胜之处。
The next key element of the a well-made play is referred to as the inciting incident.
一出好戏的下一个关键元素被称为“煽动性事件”。
Additionally, some of the world's most successful organizations have made unique HR practices a core element of their overall business strategies.
此外，一些世界上最成功的组织已经把独特的人力资源实践作为其整体商业战略的核心元素。
All the isotopes of a given element have the same number of protons, but differ in their number of neutrons, and hence in their atomic mass.
给定元素的所有同位素都含有相同的质子数，但它们的中子数不同，因此它们的原子质量也不同。
Then in 1925, a team of chemists led by a scientist named Ida Tacke claimed that they had found element 43.
然后在1925年，一个由科学家艾达·塔克领导的化学家团队声称他们发现了43号元素。
Each pattern stands for a distinct chemical element, and so different sets or patterns of spectral lines mean that the star has a different chemical composition.
每一种样式代表一种不同的化学元素，所以光谱线的不同集合或模式意味着这颗恒星有不同的化学成分。
In a considerable percentage of cases of debt-induced financial stress, credit cards and loans will be a central element.
在相当大比例的债务引发的财务压力案例中，信用卡和贷款是核心因素。
After all, the Sun has many more atoms of any element, say iron, than does a meteorite specimen, but the ratios of iron to silicon in the two kinds of matter might be comparable.
毕竟，太阳中任何元素的原子，比如说铁，都比陨石标本的原子要多得多，但这两种物质中铁和硅的比例可能是可以比较的。
Here, those in power regarded fireworks as being an important element in the education of the masses, and the displays often included a scientific message.
在这里，掌权者认为烟花是民众教育中的一个重要元素，而烟花表演往往带有科学信息。
However, I do think that an element of stress is a good thing, and if used the right way, can actually be a positive thing.
然而，我认为压力元素确实是一件好事，且如果处理得当，它实际上是可以带来积极影响的事。
Perhaps this is because the very texture of a performer's voice supplies an element of character.
也许这是因为表演者声音的质感本身就提供了一种个性元素。
I do think that an element of stress is a good thing, and if used the right way, can actually be a positive thing.
我认为有一点压力是好事，如果处理得当，实际上它是可以带来积极影响的。
While climate is a key element, Moritz says, it shouldn't come at the expense of the rest of the equation.
莫里茨说，虽然气候是一个关键因素，但不应该以牺牲其他因素为代价。
Not only did you find out much more about a country than when traveling by train or plane, but there was that element of excitement about where you would finish up that night.
与乘火车或飞机旅行相比，你不仅能了解到更多关于一个国家的信息，而且还能感受到那晚在哪里结束的那种兴奋。
This light is passed through a prism, which breaks it up into a spectrum, and a unique pattern, kind of like a chemical fingerprint of spectral lines for that element appears.
铁块会一直加热，直到到达某一燃点，便会辐射出光来；而当它的光线穿过一块棱柱时，棱柱就会分割光线，形成光谱。
According to the invention, the needle has a cannelure (14), for holding a supporting element (19) with a form of strip (20).
根据本发明，该针具有套管（14），用于保持具有条带（20）形式的支撑元件（19）。
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