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x=1y=2x=2y=3都是ax﹣by=5的解,那么a=____,b=____ 
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答案(点此获取答案解析)

-5,-5

同类题1

阅读下面的文字,完成下列小题。

长发短缨

田洪波

    21岁的孙凤英加入抗联队伍那会儿,一条麻花似的大辫子长至腰间,油汪汪、黑亮亮的。

    她原是宣传小分队的成员,随着战事吃紧就混编到四支队来了。对此孙凤英相当得意:俺也是抗联正规军了!

    的确,正规军的孙凤英有枪了。枪是短枪,而且孙凤英还扎上了绑腿,走起路来飒爽英姿。每天行军途中,孙凤英总不忘唱上几句《小鬼子把门》什么的。她嗓音清细,战士们听着脸上都一扫阴霾和疲惫。可惜好景不长,有一天她的歌声被从营地上下来的一位营长听到了。营长围着孙凤英转了两三圈,把孙凤英转毛了,小脸通红不知营长要干什么。

    “你以为这是在舞台上吗?去,把你的辫子给我剪了!”营长突然发起怒来。有几个女兵吓得吐了下舌头,拉起孙凤英就走。孙凤英张了张嘴想告诉营长,我这辫子可是留了20来年!可末了,她看了看冲她直摇头的同伴,只是咬紧了嘴唇,什么也没说。孙凤英不情愿地被剪成短发了。剪成短发的孙凤英不可抑制地一个人坐在光秃秃的树桩上好顿哭。许久,才把头猛地一甩,继续冲女伴们扬起那张青春的脸说笑。孙凤英还是那个爱唱歌的孙凤英,只是歌词换了:红旗飘飘在半天空/好似草堆落火星/妇女姐妹入抗联/长发剪成短缨缨……孙凤英好像天生不知道什么愁事,哪怕子弹从她耳边穿过!战事紧,可每次打完仗孙凤英都不忘化化妆。用烧过的火柴杆儿、细树枝儿,或者把大红纸蘸点水洇一洇,往脸上、眉上、唇上轻轻一抹、一描、一勾,一个妩媚无比的孙凤英就出现了……对一些女伴的狐疑,孙凤英干脆搬出营长的话给挡回去——咱们是正规军。正规军就要有正规军的样子!把个女伴噎得眼直翻白。孙凤英却仰天大笑,开心无比。

    起始,战士们累了还能听孙凤英亮亮嗓子。可仗越打越激烈,孙凤英就长时间没有尽情亮嗓子的机会了。不过,除了唱歌,孙凤英还懂一点医护常识,也会把饭烧得很香,于是后来,孙凤英的角色就杂了,甚至缝缝补补,浆浆洗洗的活儿也常被她揽下来。

    就是在那会,孙凤英与副支队长刘老顺走到了一起。孙凤英有个被战士称为“百宝囊”的背兜,什么药包、天剪,补衣的碎布、针线等等,用场大着哩。可偏偏就让刘老顺给看在眼里了,就隔三差五找孙凤英,一来二去,两人就有了那层意思。

    是营长作主,给他们两人在营地上举行了婚礼。婚后月余,郭塌子战役便打响了。郭塌子战役,是抗联三团伤亡最惨重的一次。尽管有战士在撤退过程中一直注意倒着走,在走过的脚印上撒上辣椒面,破坏敌人狼犬的嗅觉,奈何敌人还是步步紧逼,穷追不舍。于是在一个黄昏,六营的战士们撤到了山峰陡峭的七星峰。再往前走已经没有路了,而两岸悬崖相距两米左右。营长指挥众人一个个跳过去,但轮到孙凤英这儿卡壳了——她身上背着铁锅和铁桶,还有那个永远不离身的“百宝囊”。把东西都扔了!营长当机立断。

    我不!孙凤英第一次顶撞起营长。营长瞪圆了眼睛。孙凤英也不瞅他,把“百宝囊”摘下来递给了刘老顺,你先过去,你过去再接应我。刘老顺伸手要摘她的锅,但孙凤英挡住了,锅在我在!说时还冲刘老顺一笑。可是你?刘老顺有点急了。少废话!孙凤英狠狠瞪刘老顺一眼。无奈,刘老顺只好咬牙跳了过去,然后揪心扯肺地等着孙凤英跳。孙凤英几次试跳都没成功。

    刘老顺见状,干脆和战士们砍断了旁边的桦树搭向对岸,让孙凤英小心爬过来。孙凤英爬到一半,系铁锅和铁桶的麻绳突然断了,铁锅和铁桶落入悬崖的巨大声响惊起一群山鹰。被惊扰的还有敌人。眼见孙凤英快要爬到对岸了,这时,一声枪响,孙凤英掉下了深渊,只留下刘老顺撕心裂肺的哭喊——凤英,凤英……

同类题4

阅读下面短文,掌握其大意,然后从每题所给的A、B、C、D四个选项中选出正确的选项。

    As Robert was one day rambling (漫步) about, he happened to cry out, "Ho, ho!" He instantly (立刻) heard coming back from a hill nearby, the same words, "Ho, ho!" In great 1, he said with a loud voice, "Who are you?"  The same words came back, "Who are you?" Robert now cried out 2, "You must be a very foolish boy." "Foolish boy!" came back from the 3 in the same angry way.

    He then went into the bushes (灌木丛) nearby,4 for the boy who, he thought, was mocking (模仿取笑) him. 5, he could find nobody there.

    When he went home, he told his mother that some boy had hidden himself for the 6 of mocking him. "Robert," said his mother, "you are angry with yourself alone. You heard 7 but your own words."

    "Why, mother, 8 can that be?" said Robert.

    "Have you ever heard an echo?" asked his mother.

    "No, what is that?"

    "You know, when you play with your ball, and throw it 9 the side of a house, it bounces (反弹) back to you. If I were outside, by the side of a hill and spoke very loudly, my 10 would be sent back. Then I would hear again the 11 words that I spoke. That, my son, is an echo. When you thought someone was mocking you, it was only 12 own voice bouncing back. If you had spoken kindly, you would have heard a kind 13. Remember this when you are at play with your schoolmates. If any of them are angry, and speak in a loud, angry voice, remember the 14. Then let your words be 15 and kind. Good and kind people will always find themselves among other good and kind people."