题干

如图表示先天性行为与学习行为的相同点和不同点,其中阴影部分表示相同点.下列哪一项可以写在阴影部分()


A:生来就有

B:由生活经验和学习获得

C:有利于生存与繁殖

D:能伴随动物一生

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答案(点此获取答案解析)

C

同类题1

阅读下面短文, 从短文后各题所给的四个选项(A、B、C、D)中, 选出可以填入空白处的最佳选项。
    Many people enjoy taking trips by themselves. Unluckily, they do not always have the best1.Instead, people should consider group tours. Taking a group tour is a wise choice for people to2themselves.
    First, group tours plan travelers' routes, so people don't have to3where they are going next or how they are getting there. They can just4and enjoy their trip.5, my family once took a group tour to China. The travel agency (旅行社)6everything for us. We just looked at the schedule the travel agency had7and followed it. Thanks to the travel agency, we had a 8trip. This made things 9on my father since he didn't have to worry about where we would go next and 10at night.
    Another11of group tours is that they allow people to communicate with one another while traveling.Travelers are able to develop12with people they would never have met13they are traveling together for a number of days. As I know, my parents 14Russia on a group tour for their honeymoon(蜜月). They15another couple on that trip, and everyone had a great time together. Even after many years, they still16together from time to time. If my parents had traveled by themselves, it would have been17for them to get to know this couple.
    In short,there is 18better than a group tour when traveling. Group tours schedule everything on the trip, and they give us the19to meet others and make friends with them. Group tours are the 20way to travel when taking a trip.

同类题4

阅读下面的文字,完成后面题。

穿越死亡的父爱

陈凤优

    从小到大,我从没见父亲流过一滴眼泪。可在我手术前,他哭了。

    那是春节后的第四天,我肚子疼得厉害,几天也不见好,父亲带我上医院检查了几次,可查来查去,都查不出个所以然。

    在那度日如年的半个月里,父亲每天坐在床边,眼巴巴地望着我。看着我日渐消瘦,他的眸子失去了往日的光泽。

    不久后,我又做了一项检查,检查结束,医生紧皱眉头,自言自语:“怪事,小肠中怎么有个瘤?”他认为,这种瘤极为少见,十有八九是恶性的……很快,父亲风尘仆仆地赶到医院。就在快进病房的时候,他站住了,揩了一把湿漉漉的眼窝,步伐轻快地走了进来,冲我笑了笑。

    父亲不死心,他跟医生商量,要给我再做一遍检查。但他把检查单递进那扇小窗后,就默默地走开了。检查室里进来一位医生,是父亲托人找的一位熟人,父亲想让他来帮自己看个明白。

    半个小时后,那位医生出去了。我悄悄地扒着门缝往外看,父亲一看到他的脸,仿佛心里的一盏灯灭掉了,脸色由焦急变成了黯淡,站在原地一动不动。果然,那位医生叹了口气:“唉,太年轻了,真可惜……”父亲扶着墙慢慢地蹲下了,双手抱着头,紧紧地。过了一会儿,他吃力地站起身。我赶紧装作什么都不知道的样子,跟他回到病房。他一直沉默地往回走,但扭头看我的时候,脸上却溢满了微笑:“没什么事,只要做了手术,就会好的。”

    过了一会儿,父亲去了医生办公室,回来后对我说:“明天就可以手术。”就在我准备进手术室前,父亲忽然把大姐叫了出去。过了好一会儿,才见大姐一个人回到我的身边。我有些慌了,拉住大姐的手,连声问:“爸呢?”大姐说他有点儿事,马上就来。

    手推车把我推出了病房,行进在长长的走廊上,家人都跟在后面,谁也不说话,只听见“嚓嚓”的脚步声。这时,传来“祝你生日快乐”的铃声,这是我给父亲调的手机铃声!循着铃声,我使劲将脑袋往后仰,终于发现父亲站在走廊的尽头。远远望去,他是那样苍老,他肩头耸动,压抑着哭声,我第一次看见了父亲的眼泪。

    我躺在手术台上,麻醉师给我打了一针,我的身体慢慢失去知觉。不知过了多久,一张圆圆的脸靠近了,轻轻地对我说:“别怕,是良性的。”

    心里一块石头落了地,我却没有多惊喜。我流着泪,最先想到的就是赶快把这个消息告诉父亲。

    从手术室里出来,我又被送回病房。父亲却不在,大姐说父亲去买东西了。顿了一下,大姐又说,父亲走之前叮嘱说,手术完了一定打个电话告诉他。我不知哪来的力气,挣扎着说:“给我电话!”

    大姐掏出手机,拨通了父亲的号码,放到我耳边。“嘟……嘟……”电话声响了一会儿,听筒里终于传来父亲的声音,沙哑又克制:“手术完了吗?怎么样?”

    我感到一阵心酸,憋了半天,才哽咽着说出手术的结果。过了许久,突然传来父亲的哭声,那苍老、喑哑的抽泣声,像委屈,更像一种释放,穿透我的耳膜,慢慢地浸透我的每一根神经。

    我张张嘴,想大喊一声“爸爸”,嗓子却忽然嘶哑,耳边湿漉漉一片。那一刻,我只想伸手去抱一抱我的老父亲。