题干

手机间是利用____波来传递信息的(选填“超声”或“电磁”);氢弹是利用核____变在瞬间释放能量的.
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电磁,聚

同类题2

                                                                                                    李  拯

①读罢韩愈的《劝学解》,脑海中常常浮现当年场景:国子先生韩愈晨入太学,正欲对学生传道授业,言未毕而遭学生反问,“冬暖而儿号寒,年丰而妻啼饥……不知虑此,反教人为?”然而,正是在这命与仇谋的艰难境遇中,韩愈“业精于勤荒于嬉,行成于思毁于随”的信念,才更显珍贵。

②如冬梅,因寒风来袭而愈显其幽香;如煅剑,因用力敲打而益增其锋芒。在韩愈身上,勤奋是逆境的坚守,是日常的修炼,有着夸父逐日的执着,蕴含水滴石穿的坚忍。就此而言,稍有懈怠,略有迟缓,则不可谓之勤矣。曾国藩曾说,“百种弊病,皆从懒生。懒则弛缓,弛缓则治人不严,而趣功不敏。一处弛则百处懈矣”。

③贵有恒,何必三更眠五更起;最无益,只怕一日曝十日寒。青年***常常以此自警自励。心勤而身懒,则无非是思想的巨人、行动的矮子;口勤而手懒,则不过是眼高手低、口惠而实不至;昨勤而今懒,则必然是三天打鱼、两天晒网。懈怠的病菌一旦侵入,就会四处扩散,不断摧营拔寨,直到腐蚀整个肌体、攻陷精神城堡,矢志勤奋又怎能不慎独慎微?

④观历史兴亡之变,察古今成败之理,功败垂成也好,功亏一篑也罢,失败往往是走过了90步,却不能坚持走完剩下的10步。一部二十四史,这样的教训不胜枚举。南朝梁开国皇帝萧衍,年轻时底定江南、雄姿英发,在位日久而锐气渐消、惰气益长,晚年沉迷佛法,终至身死国灭,感叹:“自我得之,自我失之,亦复何恨!”以史为镜,懒惰之害,懈怠之危,于斯见矣!

⑤晚清洋务大臣曾国藩,既是书斋里的饱学之士,也是疆场上的建功之将,而最令后人称道的,还是他的修身功夫与勤奋精神。有这样一个故事,曾国藩坚持每天记日记,某天晚上梦到别人得到一笔额外好处,自己很羡慕,醒来之后对自己痛加指责;中午到朋友家吃饭,席间得知某人获得一项分外收入,心里又是羡慕。他在日记里写道,好利之心形诸梦寐,“真可谓下流”。

⑥有这种自省,才能不为懈怠所缚、不为成绩所惑;有这种自律,才能不为诱惑所动、不为声色所扰。没有人能随随便便成功,即便是天才,生下来的第一声啼哭,也不会就是一首好诗。没有“千磨万击还坚劲”的坚忍,没有“吾日三省吾身”的修炼,哪能轻易见到彩虹?

⑦韩非子阐述竞马的要诀,其一就是“不耻最后”。不怕梦想太遥远,就怕不能坚持到底;不怕目标太远大,就怕懒惰磨损了斗志。追逐梦想的人应该坚信,没有比人更高的山,没有比脚更长的路,只要坚持勤奋、驰而不息,纵然山重水复,也必会柳暗花明,在险峰之上收获无限风光。

同类题5

阅读下面短文, 掌握其大意, 然后从各题所给的A、B、C、D四个选项中选出最佳选项。

    A boy thought that he was the most unhappy person in the world. In his opinion, he was unlucky because almost everything 1always happened to him. He wanted to find the 2 to happiness. He walked a long way and finally came to a beautiful palace. There, he met the king.

    After learning 3 the boy came, the king suggested that he should look around the palace and come back in two hours. “At the same time, I want you to hold this spoon 4 milk,” said the king. “As you walk around my palace, carry this spoon 5 without spilling the milk.”

    The boy kept his eyes fixed on the spoon and began to walk around the golden palace. After two hours, he came back to the king. “Well,” asked the king. “Did you 6 the wonderful paintings in my dining hall? Did you enjoy the colorful flowers in the garden?” The boy felt sorry because he saw 7.  He only paid attention to the milk.

    "Then go back and you can see the beauty of my world.” said the king. This time the boy saw all of the works of art on the walls. He saw the great gardens and hills all around. He had a great time 8 he was walking around the palace. When he 9, he described everything he saw.

     "But where is the milk?” asked the king. Looking down at the spoon he held, the boy saw the milk was gone. “Well, there is only one piece of 10 I can give you,” said the king. “The secret to happiness is to see all the beauty of the world and also keep an eye on the milk on the spoon.”