【正文】 t’s the feet that carry your whole body weight, and everything about your feet carry you, as well as your hopes and dreams, and walk steadily upon the most solid ground, moving forward step by step, upon mountains and down valleys, over the smooth as well as the rough, through the bitterness as well as the i was washing my feet, i let my mind felt as if i was on a vast around, i saw millions of footprints, large and small, deep and shallow, being the marks of existence, and the traces of there i was, using my own feet, making my own path, towards the oasis of life……thank ，生命的載體女士們，先生們，上午好!我想告訴大家一份不尋常的家庭作業(yè)，老師布置我們當(dāng)晚回家認(rèn)真給自己洗一遍腳，聽到后，我感到驚奇而有趣。而腳踩在地上，即使有鞋襪，也總被認(rèn)為是與灰土打交道的粗笨一族，并有不可避免的異味，腳，似乎成了身體中被忽視的部分。腳，負(fù)著你，你沉甸甸的希望和夢(mèng)想，踩著踏實(shí)的大地，一步一步地前進(jìn)，走上了高山也走下了峽谷，走過了平坦也走過了崎嶇，走過了苦難也走過了幸福。第一部分：學(xué)齡前教育，即幼兒園教育。與我國(guó)小學(xué)類似，開始學(xué)習(xí)所有科目，但并不非常注重學(xué)習(xí)成績(jī)，算是一種開導(dǎo)式教育以培養(yǎng)興趣，故基礎(chǔ)教育扎實(shí)度與國(guó)內(nèi)不可相比。其范圍非常廣泛，美術(shù)、音樂、地理、拉丁、德語、體育理論、商業(yè)、經(jīng)濟(jì)等。第三部分：延續(xù)教育。它分為兩種體系：學(xué)業(yè)路線和職業(yè)路線。它總共有100多個(gè)科目，專業(yè)分科極為細(xì)致，它不像我國(guó)學(xué)生在高中學(xué)習(xí)的課程。而在第二年再確定只選三門alevel科目。這種方式給學(xué)生提供了更多的選擇機(jī)會(huì)，使不同類型的學(xué)生能夠充分發(fā)揮自己的優(yōu)勢(shì)和潛能。gnvq的選科比較簡(jiǎn)單，每門課程就是一個(gè)專業(yè)，所有受到許多英國(guó)學(xué)生和中國(guó)留學(xué)生的青睞。因?yàn)檫@兩種學(xué)科的共同點(diǎn)是“人命關(guān)天”。hnd也是一種非常有用的文憑。hnd畢業(yè)后，如果取得比較好的成績(jī)，可以選擇直接進(jìn)入本科第三年的課程，通常是本?；蚵?lián)校的相應(yīng)專業(yè)。第一學(xué)期為9月中至圣誕節(jié)（約12月中）；第二學(xué)期為1月中至萬圣節(jié)（約4月中）；第三學(xué)期為5月初。ucas有一點(diǎn)類似中國(guó)的大學(xué)高考，兩者最大的不同是高考需要經(jīng)由聯(lián)考，而ucas只是申請(qǐng)。then, lead the branch grows with well: this is the iron wire is utilized to make green stems could be coiled around the iron well will be done about three hedge: there is a same way as the pergola to make a : you can also use roses to make some animal as: rabbit, hippocampus?? the rose garden is done after collocate with garden lights, furniture, lattice well, flower hedge, pergola and can have a barbecue in the rose garden with 4 the most popular rose good evening, everyone, tonight id like to say something about the most popular we all known ,there are many kinds of roses, the red rose, blue rose, white rose, green roses and purple rose, black rose, yellow rose, rainbow , lets take a look some the most popular at the picture ,it called blue can rarely see a natural blue rose, when a white rose quickly to the flowering, watering it with dyes, because absorbs the dyes, and finally it turned blue blue enchantress means pure love and sincere is roasted rose, roasted rose can adaptation for climate to grow in many country, it can be widely used in rose’s deep ’s a rare superior varieties of agricultural then, champagne roses: champagne roses is the national flower of people say wishing on a champagne roses can be achieved, so it called happy : corolla rose is the patent product of the united states, belong to the top varieties of red roses bulgaria rose: part 5 other five popular moon, sweet pretty, alba meialandina, horatio nelson and sun sprinkles are also very popular among line rose have a fresh color like lavender, charming and make your feel is popular in northern city and easily pretty it has a little of petals but has a number of flowers and like the butterflies dancing on the green can see the stamen very clearly and the twigs are meialandina the white color looks simple but can serve as the potted plant and bedding nelson it cultivates from coldconsistence and diseaseconsistence are very can use to decorate the woodfence and act as the cut sprinkles these flowers have thin petals, but have long flowering color of flowers like the sunlight, let us feel often use to decorate the most popular rose part 6 today i will introduce five methods of growing roses。一般來說，采用反饋的放大器有卓越的經(jīng)營(yíng)特點(diǎn)，在犧牲增益的代價(jià)下。因此，放大到幾乎任何的精確度，可以容易地實(shí)現(xiàn)。?=符號(hào)（c）是差分輸入，差分輸出運(yùn)算放大器。例外情況是可以使用單個(gè)電源的ac放大器電路。as indicated in figure 6, the operational amplifier can be represented by an ideal voltage source whose value depends on the input voltage appearing across the inverting and noninverting inputs plus the effects of finite [?fainait] 有限input and output impedances [im?pi:d?ns] value, a, is known as the open loop(without feedback)gain of the operational ，運(yùn)算放大器可以表示為一個(gè)理想電壓源，其值取決于對(duì)輸入電壓的兩端出現(xiàn)的反相和非反相輸入端加上有限的輸入和輸出阻抗的影響。圖6表示的差分輸出的模型類型時(shí)，它被用作一個(gè)單端輸出的移動(dòng)設(shè)備簡(jiǎn)單地被忽略的反相輸出。理想的運(yùn)算放大器的模型是在圖9中所示。?= output impedance: the output impedance of the ideal operational amplifier is assumed to be then can supply as much current as necessary to the load being ：理想的運(yùn)算放大器的輸出阻抗被假定為零。頻率響應(yīng)是平的，無限的，因?yàn)榻涣鲿?huì)只是一個(gè)快速變化的dc電平的理想放大器的帶寬。當(dāng)es是零，其輸出為零。它可能無法收回。two important feedback circuits篇四：專業(yè)英語演講稿范文專業(yè)英語演講稿范文feet, the carriers of life good morning, ladies and would like to tell you about an unusual was surprised and amused when our teacher told us our homework was to wash our feet i slowly soaped and rinsed my feet, i was beginning to understand why my teacher launched such a wanted us to realize that the feet were more helpful than we had ever , the hands are it’s the feet that carry your whole body weight, and everything about your feet carry you, as well as your hopes and dreams, and walk steadily upon the most solid ground, moving forward step by step, upon mountains and down valleys, over the smooth as well as the rough, through the bitterness as well as the i was washing my feet, i let my mind felt as if i was on a vast around, i saw millions of footprints, large and small, deep and shallow, being the marks of existence, and the traces of there i was, using my own feet, making my own path, towards the oasis of life?? thank ，生命的載體女士們，先生們，上午好!我想告訴大家一份不尋常的家庭作業(yè)，老師布置我們當(dāng)晚回家認(rèn)真給自己洗一遍腳，聽到后，我感到驚奇而有趣。而腳踩在地上，即使有鞋襪，也總被認(rèn)為是與灰土打交道的粗笨一族，并有不可避免的異味，腳，似乎成了身體中被忽視的部分。腳，負(fù)著你，你沉甸甸的希望和夢(mèng)想，踩著踏實(shí)的大地，一步一步地前進(jìn)，走上了高山也走下了峽谷，走過了平坦也走過了崎嶇，走過了苦難也走過了