新时期“三打三防”中的电子防御

早在本世纪７０年代初，我国军民曾开展了卓有成效的“三打三防’训练。根据当时的国际环境，“三打”指的是打坦克、打飞机和打空降；“三防”指的是防原子、防化学和防生物武器。为了防止敌国坦克入侵，当时在国境线主要道路两侧构筑起反坦克路障，以阻止坦克通行。在新时期战略方针指引下，“三打”、“三防”内涵都有所变化。目前，对新时期“三打三防”的具体内容提法尚不完全一致，据《解放军报》报道，“三打”指打隐形目标、打巡航导弹、打武装直升机；“三防”指防电子干扰、防精确打击、防侦察监视。“三打”实质上是“一打’，即…     

土家族“打镏子”趣谈

“打镏子”又名“打家伙”，是流传于湘西地区的一种古老的土家族打击乐。当代诸多民俗、民族学家和音乐学家对土家族“打镏子”的研究成果蔚然，他们积极整理和挖掘“打镏子”的演奏技法、乐队组合、曲牌、结构等艺术特征，使土家族“打镏子”为中国民族音乐艺术增添了光彩。“打镏子”不同于别的门类的打击乐，它有独特的个性和特色，并且有一定的和声效果。如果自己参与实践，就会觉得妙趣横生，其乐无穷。一、“打镏子”在湘西有多种称谓在湘西土家族地区，“打镏子”又称“打家伙”、“打土挤钹”、“打钹锣”等。据民俗、民族学家考证…     

新年游艺宫

新年游艺宫一、节日灯谜１．诸君猜谜，不要多言，不要走，且站在一旁，对着细想。（打一字）；２．欢欢喜喜过新年（打花名二）：３．在希望的田野上（打一字）；４．一月一日非今天（打一字）；５．只因自大一点，惹得别人讨厌（打一字）；６．消费者举手赞成（打常用词...     

生活幽默

生活幽默当了爸爸再打七岁的小明同邻居小攻打架，其父怒不可遇地揪住儿子就打，边打边骂：＂小小年纪就打架，老子今天非好好地教训你不可．＂小明痛得嗽嗽直叫、连连求饶．其父生气地问：＂你还敢打不？＂小明哭着回答：＂现在不打，等长大当了爸爸再打．＂父与子妻子让...     

猜猜看

L八十多了一横(打一字)2浪B制演员(打一几何用语) 3.不加口是一口，加一口是九口亩一字) 4.不露脸(打一食物)5.步调一致(打一字) 6.彩电(打一成语)7.拆信(打一城市名》 &风平浪静(打一城市名)9.夺半留半(打一字) 10.画时圆，写时方.寒时短，热时长(打一字) 11.good mo而ng(打一字)12.黄鹅绒，包张弓(打一食物) 疾瑟13膀晚的太阳(打一字、14.加把力.就成功亡打一字、 戒气层争15.节检之人月有余(打一字、 (答案本期内找) 自《中国娱乐网》 亥并落省 {雹簇么瞥缪鑫 {禁粤势沙少猜猜看~~…     

别让爸爸的手机像玩具

每周的例行电话，打家里的座机，没人接。接着打妈妈的手机，关机。再打弟弟的手机，不在服务区。没辙，才给我爸打。 没想到爸爸竟很快地接了起来，语气里全是高兴。我爸不爱讲话，有事大家都打家里的座机或我妈的手机。甚至有事找他，有时也是打给妈妈让转告。我快挂电话时，他在那头说：“除了你妈打电话叫我吃饭，平常这手机都没有人打．跟个...     

爆笑

打熊 有个年轻人家里很穷，想去打熊赚钱，他听说有个道士很会打熊，于是到山上请教。     

那些年我们挨过的打

当年在四川上小学，有段时间我们班主任嫌打人太累，就安排同学们互相打。每次考试分数下来，排好名次后，由第一名打最后一名，第二名打倒数第二名……以此类推。两人之间的成绩差着多少分，就打多少下。特有创意。     

宝宝打人了

“老师——宝宝打我了。”“宝宝”？赵老师有点不相信自己的耳朵，宝宝可是从来不打人的。别人打他，他除了哭就是告状，一副无助的样子。今天是为什么呢？赵老师找来宝宝，问起原因，宝宝说：“他抢我玩具，我向他要，他不还还打我。爸爸说谁再打你！你就打他，我就打他了。”您认为应该怎样看待并处理这件事呢。宝宝打人了     

正方形、长方形都是平行四边形吗？

正方形、长方形都是平行四边形吗？汪珊石在一次考试中有这样一道判断题（认为对的在括号里打＂√＂，错的打＂×＂。），＂正方形和长方形都是平行四边形。（）＂。答案是肯定的，应该在括号里打＂√＂，但不少学生却打＂×＂了。两者之间还发生了一场比较激烈的争论。判...     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.