题干

地震前,地下的地层岩石运动或断裂会产生次声波。某些动物会接收到并做出反应。如图是几种动物发声和听觉的频率范围,其中能提前感受到地震的动物是(   )

A:狗

B:猫

C:蝙蝠

D:海豚 

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答案(点此获取答案解析)

A

同类题1

阅读下文,回答问题

难忘那夜的秋雨

    ①1950年深秋,我母亲到亲戚家赊了头小猪来养。大约过了不到十天,亲戚家的掌门人来到我家,对母亲说:“我是来看弟弟的,顺便来收你赊的猪崽钱。”母亲说:“现在确实没钱,等筹到钱一定给您送去。”这位掌门人没有说行还是不行。接着,她指着我家的破屋说:“我的亲戚现在住的都不错,就是你还住牛栏,这么破,这么矮,狗都跳得过去。”晚上,父亲知道了,大发脾气。好像猪崽也听懂了似的,不停地叫。父亲骂母亲没骨气,怨亲戚无情,也恨自己没用,坚决要把小猪送还人家,宁愿饿死,也不低三下四。

    ②母亲没办法,要我同她一起在小猪脖子上绑了根绳,牵着赶回亲戚家。

    ③已是凌晨二时许,秋风瑟瑟,细雨绵绵。我在前面牵着小猪,母亲在后面吆喝。快走到村西两棵大樟树旁时,想到这里曾枪毙过一个恶霸、一个反革命,那个恶霸被步枪打穿了胸脯,血肉模糊;那个反革命被手枪打碎了脑壳,脑浆迸溢。因曾亲眼目睹,感觉十分恐怖。顿时我双腿发软,走不动了,吓得哭了起来。母亲也难过地哭了,安慰我说:“不要怕,哪里有鬼?就是有鬼,也不会吓我们这样的穷人,(A)我活了四十多岁,受过人的欺侮,没有受过鬼的欺侮!”我心里好像得到了一种从来有过的安慰,又好像吃了一颗壮胆药。再往前走了约一百米,又看见村里一个被邻村杀死的人放在棺材里,并用砖垒了一个小屋,说是报了仇才能下葬。我又害怕起来,但还是硬着头皮,牵拉着小猪往前走。这家伙不停地叫,好像是为我们壮胆,为我们叫苦,抑或是抨击人情太薄。

    ④再往前,要翻过一座山,走。里多长的山路,这时雨下得更大了,身上也湿透了。走在山路上,忽然窜出一只动物,不知是狼是狗,吓得我胆战心惊。母亲说:“不要怕,你是个大孩子了,畜生不会伤害我们。”快到西北边山脚下时,看到一大片坟墓,大大小小的坟堆,好像大大小小的土馒头。母亲说:“再走一会儿就出山了,有我在,你不要怕。”我想到母亲可怜,又呜呜地哭起来。大约又过了半个多小时,终于把小猪送到亲戚家,这时天才蒙蒙亮。掌门人淡淡地说:“把猪关到栏里去,你们吃过早饭回去吧?”我们全身湿透了,像落汤鸡,,一夜折腾得够呛,连水都没喝一口,肚子早饿了。但母亲只轻轻地说了句:“(B)谢谢,我们还要赶回去。”在往回走的路上,天先是阴森森的,慢慢地亮了些,秋雨袭来,身上不时打寒噤。

    ⑤回到家里,看到我们可怜的样子,父亲没做声,转过身去,不停用手抹眼泪。母亲赶紧把我的湿衣服换了下来,都是打补丁的旧上布衣服。

    ⑥父亲煮了一锅菜粥,桌上放了一碗咸芥菜,也没放油。父亲说:“哼,人穷盐钵里都会长蛆。”母亲对我说;“你都十多岁了,家里人多,几亩地又打不到够全年吃的粮食,你爸爸也忙不过来,不要再去读书了,好吗?”我没做声,放下碗,倒在床上哭。父母心软了,让步了,又说:“是同你商量,你硬要读就去读,反正我们穷。”我爬起来,饿着肚子就往学校跑,母亲把我追了回来。

    ⑦这天傍晚,乌云密布,秋雨扑面,可晒场上的那棵松树,还是那样刚劲,不管严冬还是酷暑,总是那么挺拔。吃晚饭时,父亲突然问:“你能读个出息来吗?今后能不能当上小学教师?”我说:“不知道,只要你们允许我读,我会努力的。”这时,母亲发现我发高烧,赶紧烧了一大碗开水,叫我全都喝下去,盖上被子把寒气逼出来。

    ⑧窗外秋雨仍下个不停。秋风从船板做的墙壁缝中往里面灌,冷飕飕的。看到父母骨瘦如柴,岁月和苦难在脸上刻满了忧愁,我鼻子发酸,眼前一片漆黑。再看自己皮包骨头的手,像鸡爪子,皮肤像那两棵老樟树的皮。

    ⑨有人说:“求人比登天难,人情比纸还薄。”这虽不是生活的全部,却也道出了世态炎凉。童年经历的人间苦难,令我对生活在社会底层的人感同身受,格外关注弱势群体的生存状况。我自认为是个有情有义的人,尤其懂得知恩图报。

同类题2

阅读下面短文,从每所给的A、B、C、D四个项中选出最佳选项。

    I have read plenty of articles about self-improvement these past few months, and most of them tell you that you need to wake up and keep positive(积极的). When you wake up, you need to think that something great is going to happen today, and that you are going to have a great day. This kind of positive attitude(态度) is supposed to change your whole day.

    So this morning I woke up and decided to give it a whirl. The sun was shining brightly through my bedroom window, and it immediately gave me this warm feeling inside. I thought to myself, "Today is going to be a great day. One of the best days ever!" I got out of bed, took my morning shower and began to get dressed. I put on a pair of dress pants I have not warned in a while, followed by my dress shirt and that is when it began. I reached into my left pocket and pulled out what felt like some paper.

    You know that feeling of finding a $20 hill in your pants and it feels like free money? Because you forgot all about it and thought you never did?

    I pulled out a $100 bill and a $50 bill in the same pocket. It seemed like the best thing that had happened to me these days. Yes, $150 starts off my day! I'm sure if someone could have seen the smile on my face, they would have understood, I shouted in joy, with my poor dog looking at me like I was crazy!

    Start your morning off thinking you are going to have the best day ever and you just might! I really want to know what will happen next.