活泼

All alkaline earth elements have an oxidation number of +2, making them very reactive. Because of their reactivity, the alkaline metals are not found free in nature.

所有的碱土金属元素的化合价都是+2，这使他们非常活泼，因为他们非常活泼，也不在自然界中直接出现。

In our research on study chemical reaction of active methylene compounds and brom-acetophenone. Because of brom-acetophenone is compound that contain carbonyl and halogen ,which will take place electrophilic substitution and nucleophilic addition. When active methylene compounds are ethyl acetoacetate and β-diketone, controlling reaction condition, we have found that mono-substitution's production and di-substitution's. production is isolated; active methylene compounds are acetoacetanilide and acetoacetanilide derivate, pyrrolidin-2-one derivants were obtained by substitution and close-ring reaction .but there is no report about it.

本文是让活泼亚甲基类化合物与溴代苯乙酮发生化学反应，由于溴代苯乙酮是含有羰基的卤代烃结构，它可以发生亲电取代和亲核加成反应，当活泼亚甲基类化合物为乙酰乙酸乙酯和β-二酮时，控制反应条件可以发生单取代和双取代两种产物；当活泼亚甲基类化合物为乙酰乙酰芳胺类化合物来反应时，溴代苯乙酮中的羰基与氨基会发生分子内的关环反应生成吡咯烷-2-酮衍生物，这在以前的研究中是没有发现的。

Jurgen has brought fresh life into our winter evenings, and into you too, mother.

雨尔根使冬天的夜晚变得活泼，也使得你变得活泼！

A novel zwitterion derived from the addition of thiazole carbene to ketene was discovered and captured by an activated alkyne. In this process, we developed a facile and efficient three-component tandem reaction involving thiazole or benzothiazole carbene, disubstituted ketene and activated alkyne.

我们发现了一种新的噻唑卡宾和烯酮形成的两性离子的存在，并用活泼炔成功捕捉，从而发展了一个新的噻唑卡宾或苯并噻唑卡宾、二取代烯酮和活泼炔的三组分串联反应。

The present Cu-20Ni-25Co alloy forms a continuous of Co2O3 layers over the surface of alloy because Cu-20Ni-25Co alloy formed by adding Ni to Cu-Co alloy decrease the critical concentration of forming reactive component oxides.

这主要归因于向Cu-Co合金加入了第三组元Ni，降低了合金表面活泼组元形成氧化物所需的临界浓度，促使合金表面由混合氧化物膜向单一活泼组元氧化物膜的转化。

There is a rhythm in front of a free Introduction, by the violin playing in the bass area, enter the formal dance rhythm, the emergence of a cheerful and lively melodies, this is the first part of its A segment, B segment is composed of a series of sixteenth note very lively.

前面有个节奏自由的引子，由小提琴在低音区演奏，进入正规舞曲节奏之后，出现了一段活泼欢快的旋律，这是它第一部分的A段，B段也是用一系列十六分音符组成，十分活泼。

Alicia Sacramone - I love her sassiness and I LOVE LOVE LOVE her power on vault! JYY - I love this girl's spunkiness, she and Shawn both seem to always have a ready smile He Kexin - This girl is steady as a rock. She is going to go far Vanessa Ferrari - Put Italian gymnastics on the map. Jade Barbosa - she cries a lot and it's really endearing, imo. Cheng Fei - What an amazing athlete! Great skills and presentation.Jiang YuanYuan - How cute is she?(answer: INCREDIBLY cute)Yang Yilin - Beautiful gymnast, and I don't think we pay enough attention to her overall in the midst of discussing Nastia/He. He Kexin - Her bars take my breath away. And she used to have one lovely FX routine that put a smile on my face. Yang Yilin - Such a beautiful gymnast and such a lovely girl. She seems very likeable

而且她活泼的状态也惹人喜爱 Alicia Sacramone -她也拥有活泼的状态，同时在跳马项目上也有着过人的能力 JYY-我喜欢她的勇敢，她和Shawn总是带着微笑出场 He Kexin -她坚定不移的信念让人佩服，她将走的更远Vanessa Ferrari -她使意大利的体操更加出名 Jade Barbosa -她哭了很多次，但那在我看来那的确很惹人喜爱 Cheng Fei -一位多么令人惊奇的运动员，有着高超的技术 Jiang YuanYuan -她是多么的可爱呢 Yang Yilin -她带来优美的体操，而且我认为我们没有给予她足够的关注 He Kexin -她的表演使人忘记呼吸 Yang Yilin -多么优美的体操，多么可爱的女孩，她看起来非常的可爱

The condensation of aromatic aldehydes with active methylene compounds like malononitrile, cyanoacetamide and ethyl cyanoacetate has been found to proceed very efficiently at room temperature giving excellent yields, but the condensation of heteroaromatic,α,β-unsaturated and aliphatic aldehydes with active methylene compounds proceeded smoothly in 50~65℃ with good yields and the reactions of aromatic, aliphatic ketones as well as p-phthalaldehyde with malononitrile also proceeded in 75~85℃ with moderate yields.

芳香醛与活泼亚甲基化合物如丙二腈、氰基乙酸乙酯、氰基乙酰胺的缩合在室温下即能顺利进行，获得了很高的收率；而对于杂环芳醛、α，β-不饱和的醛以及脂肪醛与活泼亚甲基化合物的缩合，需在50~65℃下进行，也取得了很高的收率；对于脂肪酮、芳香酮以及二元醛与丙二腈的缩合在75~85℃下也能顺利地进行，获得中等以上的收率。

A bouncing gait bouncy tunes the peppy and interesting talk a spirited dance .

活泼的步态；欢快的曲调；精力充沛，妙趣横生的谈话；活泼的舞蹈。

Trig suggests sprightly smartness: Trig 包含活泼漂亮的意思:"the trig corporal, with the little visorless cap worn so jauntily".

&那个带着一顶如此活泼的无沿帽的整洁的下士&

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。