des加密心得体会实用 des加密方法(三篇)

我们得到了一些心得体会以后，应该马上记录下来，写一篇心得体会，这样能够给人努力向前的动力。优质的心得体会该怎么样去写呢？下面我帮大家找寻并整理了一些优秀的心得体会范文，我们一起来了解一下吧。

最新des加密心得体会实用一

do you remember a legend in ancient times? it was hard-working meng jiangnuwho came to the great wall after many hardships in order to find her husband whowas captured by the officers and soldiers to build the great wall. when sheinquired around, she found out that her husband was tired to death, so she criedfor three days and three nights on the great wall. all of a sudden, with a bang,the great wall collapsed 800 miles. tourists, what a touching story it is. itcan be seen that the great wall condenses the blood and sweat of millions ofpeople and is the crystallization of the wisdom of the chinese people.

the total length of the great wall is about 6700 kilometers. the mostfamous badaling great wall rises and falls with the mountains. there are peakson both sides of the north and south. please follow me. look, the great wall ismainly composed of passes, walls and beacon towers. the city wall is the mainproject of the great wall. it is especially strong. it is made of huge bricks,stone bars and other materials. the pass is an important garrison along thegreat wall. please have a look next to it. there is a crenel on the top of thecity. there is a small crenel on each crenel. that is the liaowangkou. there isa shooting hole under the crenels. as for beacon towers, they are buildings thatlight beacon fires to convey information when there is military , when you stand on the great wall and look into the distance, can't you seethe end in front of you and the end behind you?

tourists, i'll introduce you here first. please enjoy the walk. please payattention, don't litter, scribble, and take good care of the great wall, whichis a world heritage that people exchange with their blood and sweat.

大家好!我是一位小导游。今天，我就给出大家介绍一下著名的世界遗产――长城。__曾经说过：'不到长城非好汉。'今天，你们要登长城做好汉了!祝贺你们!你们知道吗?长城被列入'世界'遗产的时间是20__年12月。长城是中国的像征，身为中华儿女的我们，又怎么能不骄傲呢?

大家记得古时候有一个传说吗?那是勤劳的孟姜女为了找被官兵捉去建筑长城的丈夫，经过许多艰难困苦，来到长城边。当她四处打听，才知道丈夫被活活地累死了，于是，她在长城哭了三天三夜。突然，只听'轰隆'一声，长城被哭倒了800里。游客们，这是多么感人的故事啊，可见，万里长城凝结了千万人民的血汗，是中华人民智慧的结晶。

长城总长约6700千米，最有名的八达岭长城随山势起伏，南北两边都有高峰耸立着。大家请跟我来。看，长城主要由关隘、城墙和烽火台三部分组成的。城墙是长城的主要工程，特别坚固，是用巨砖、石条等材料砌成的。关隘就是长城沿线的重要驻兵据点。大家请看看旁边，城顶上有一个垛口，每个垛口上都有一个小口，那就是嘹望口。垛口下面都有一个枪击口。至于烽火台，是有军情时点燃烽火来传递信息的建筑。现在，大家站在长城上远眺，是不是前看不到头，后见不着尾呢?

游客们，我先介绍到这里了，请大家漫步欣赏。大家注意了，在游览时，不要乱丢垃圾，乱涂乱画，爱护长城这一人们用血汗换来的世界遗产。

最新des加密心得体会实用二

dear tourists, hello! welcome to the great wall. the section of the greatwall where we are now is badaling great wall. i'm zhao shanyue. today, i'll showyou around the great wall. i hope you can have a good time. before the tour, iwould like to emphasize the following points: first, please keep up with theteam and don't fall behind; second, please don't scribble on the wall or leaverubbish on the ground. please take good care of the great wall.

the great wall is very long. it is more than 13000 li from shanhaiguan inthe east to jiayuguan in the west. it traverses 15 provinces, cities andautonomous regions, with a total length of about 6700 km and 13300 li. it isknown as the "great wall" in the world. the great wall is very tall and is made of huge stones and bricks. you can have a look at the square bricksunder our feet. they are very smooth. five or six horses can run in ne turned their eyes to the crenels outside the city wall. the crenels areequipped with lookout and shooting ports for lookout and shooting. the concavepart is called the peephole, and the square hole is called the shooter. on thetop of the city wall, there is a square platform every 300 meters, which is afortress for garrison troops. when fighting, the platforms can echo eachother.

the great wall is listed as one of the world cultural heritages with a longhistory. during the spring and autumn period and the warring states period, inorder to defend each other, countries built the great wall in the dangerousterrain.

the great wall was first built in the spring and autumn period and thewarring states period. it was repaired in the qin shihuang period. since then,the great wall has been built in the han, northern wei, northern qi, northernzhou and sui dynasties. the great wall was built 18 times in ming dynasty.

about the great wall, i'll introduce these, let's enjoy it!

尊敬的游客朋友们，大家好!欢迎来到长城。我们现在所在的这段长城是八达岭长城。我是导游赵珊跃，今天，我将带领大家游览长城，希望大家能玩的开心。在游览之前我要先强调一下游览中需要注意的事：第一，请大家要跟紧队伍，不要掉队;第二，请大家不要在墙上乱涂乱画，还不能把拉圾?在地上，请爱护长城。

长城很长，它从东头的山海关到西头的嘉峪关有13000多里，长城它横贯了十五个省、市、自治区，全长约6700公里，约13300里，在世界上有'万里长城'之誉。长城十分高大坚固，是用巨大的条石和城砖筑成的。大家可以看看我们脚下的方砖，铺得十分平整。五六匹马都可以并行。大家把目光都转到城墙外上的垛子。垛子上有?望口和射口，供?望和射击用的。那凹下去的部分叫?望口，方形的洞叫射口。在城墙顶上每隔三百多米就有一座方形的城台，是屯兵用的堡垒，打?的时候城台之间可以互相呼应。

长城被列为世界文化遗产之一，有着悠久的历史。春秋战国时期，各国为了互相防御，就在地势险要之处修建长城。

长城它始建于春秋战国时期，秦始皇时期加以修缮，此后汉、北魏、北齐、北周、隋各代都曾修筑过长城。明代修筑长城达18次。

关于长城我就介绍这些，大家尽情地游玩吧!

最新des加密心得体会实用三

beijing, the ancient capital of six dynasties in china, has a long historyand a relatively complete architectural pattern. beijing, the capital of thepeople's republic of china, is the center of china's politics, culture andinternational exchanges. therefore, beijing has a rich and colorful ancient andmodern cultural landscape and profound cultural heritage.

beijing covers an area of 16807.8 square kilometers, with jundu mountain inthe north and xishan mountain in the west. dongling mountain at the junction ofhebei province is 2303 meters above sea level, the highest peak in are miyun reservoir, huairou reservoir and ming tombs reservoir in theterritory; there are five other rivers, namely chaobai river, beiyunhe river,yongding river, juma river and tanghe river.

beijing's climate is temperate continental monsoon climate with distinctseasons: a little sandstorm in spring and low temperature. summer is hot withshowers. in autumn, the weather is sunny, mild and crisp, which is the goldenseason for tourism; but in late autumn, it is cooler in the morning and evening,and hot at noon. in winter, the climate is dry and cold with less snow.

when you come to beijing for sightseeing, you can't miss the snacks withbeijing characteristics and the famous food with a long history. famous dishesinclude beijing roast duck, instant boiled mutton and court dishes.

beijing's specialties are: wang mazi scissors, angong niuhuang pill, qiulipaste, preserved fruit, poria cocos cake, liubiju pickles. local products are:jingbai pear, gaishi, liangxiang chestnut, hawthorn, walnut, miyun jujube,apricot.

北京,是中国六朝古都,历史源远流长,保存着较为完整的古代建筑格局。北京,是中华人民共和国的首都,简称京,是中国的政治、文化和国际交往的中心,由此北京有着丰富多彩的古代、现代的人文景观,有着博大精深的文化底蕴。

北京全市面积16807.8平方公里,在北面有军都山,西面有西山,与河北交界的东灵山海拔2303米是北京市的最高峰。境内有密云水库、怀柔水库和十三陵水库;其他还有潮白河、北运河、永定河、拒马河和汤河五大河。

北京的气候属于温带大陆性季风性气候,季节分明:春季略有风沙,气温偏低。夏季炎热,有阵雨。秋季天气晴朗、温和,天高气爽,是旅游的黄金季节;但深秋早晚较凉,中午较热。冬季气候干燥、寒冷,雪较少。

来北京观光旅游不能错过具有北京特色的风味小吃和悠久历史的名吃。名吃有北京烤鸭、涮羊肉、宫廷菜。

北京的特产有:王麻子刀剪、安宫牛黄丸、秋梨膏、果脯蜜饯、茯苓夹饼、六必居酱菜。土产有:京白梨、盖柿、良乡板栗、山楂、核桃、密云小枣、杏。