题干

真核细胞中,合成场所相同的一组物质是(    )

A:磷脂分子和血红蛋白

B:胃蛋白酶和抗体

C:DNA聚合酶和DNA

D:胰岛素和乙烯

上一题 下一题 0.0难度 选择题 更新时间:2018-03-20 12:40:27

答案(点此获取答案解析)

B

同类题1

阅读理解

    Every kid wishes to be an adult. Do you remember playing house as a child — pretending(假装) to be a grown-up like your parents? Did you imagine you were a doctor, a soldier or a teacher? At that time, anything seemed more exciting than being young.

    But now as grown-ups, some adults find they cannot leave childhood behind. They become “kidults”. Being a kidult has become a lifestyle choice among young people across Asia.

    Some kidults collect toys they once played with. Hello Kitty, Garfield, and Snoopy have many adult fans around the world. It is not unusual to see a 20-something woman with a big, Garfield-shaped cushion on her sofa or a Hello Kitty mobile phone accessory(配件、附件).

    Other kidults still enjoy children's stories and fairy tales. For example, the British publisher Bloomsbury even released an edition(发布一个版本) of the Harry Potter novels with an adult cover. That way, no one else on the subway will know that an adult is actually reading a children's book.

    “Kidults can be like vitamins to society. Adults who love their childhood most and hold on to pure, child-like emotion may be needed in such a rough and dry society,” said Lee So-jung, a professor at Hankuk University of Foreign Studies.

    He added that kidult culture may fill the generation gap between adults and kids. It could give children and their parents books, movies, and cartoon shows to enjoy together.

    Tim Greenhalgh, an adviser in London explained that some kidults just refuse to grow up. They hold on to childhood because working life in a busy and stressful city frightens them. Kidults would like to forget their age and openly show their fear of society and adulthood.

    “So, they can escape from increasingly busy and stressful lives that are hard to deal with,” Greenhalgh said.

同类题4

阅读下文,回答问题

小扇轻摇的时光

丁立梅

    ①暑假了,母亲一直盼望我能回乡下住几天的。她知道我打小就喜欢吃些瓜呀果的,所以每年都少不了要在地里面种一些。待得我放暑假的时候,那些瓜呀果的正当时,一个个碧润可爱地在地里面躺着,专等我回家吃。

    ②天气热,我赖在空调间里怕出来,故回家的行程被一拖再拖。眼看着假期已过一半了,我还没有回家的意思。母亲沉不住气了,打来电话说,你再不回来,那些瓜都要熟得烂掉了。

    ③再没有赖下去的理由了。遂带了儿子,冒着大太阳,坐了几个小时的车,回到了生我养我的小村庄。

    ④村庄的人都是看着我长大的,看见我了,亲切得如同自家的孩子。远远地就笑着递过话来,梅又回来看妈妈啦?我笑着应。就听到他们在背后说,这孩子孝顺,一点不忘本。心里面刹时涌满羞愧,我其实什么也没做啊,只偶尔把自己送回来给想念我的母亲看一看,竟被村人们夸成孝顺了。

    ⑤母亲知道我回来,早早的把瓜摘下来,放在井水里面凉着,是我最喜欢吃的梨瓜和香瓜。又把家里惟一的一台大电扇,搬到我儿子身边,给我儿子吹。

    ⑥我很贪婪地捧了瓜就啃,母亲在一边心满意足地看,一边就说,田里面结得多呢,你多呆些日子,保证你天天有瓜吃。我笑笑,有些口是心非地说,好。儿子却在一旁大叫起来,不行不行,外婆,你家太热了。母亲就惊诧地问,有大电扇吹着还热?

    ⑦儿子不屑了,说,大电扇算什么?我家有空调。你看你家连卫生间也没有呢。

    ⑧我立即用严厉的眼神制止了儿子,对母亲笑,妈你别听他的,有电扇吹着不热的。

    ⑨母亲没再说什么,一头没进厨房间,去给我们忙好吃的了。

    ⑩晚饭后,母亲把那台大电扇搬到我房内,有些内疚地说,让你们热着了,明天你就带孩子回去吧,别让孩子在这儿热坏了。

    ⑪我笑笑,执意要坐到外面纳凉。母亲先是一愣,继而惊喜不已,忙不叠搬了躺椅到外面。我仰面躺下,对着天空,手上执一把母亲递来的蒲扇,慢慢摇。虫鸣在四周此起彼伏地响起,南瓜花在夜色里静静开放。月亮升起来了,盈盈而照,温柔若水。恍惚间,月下有小女孩,手执小扇,追着扑萤。依稀的,都是儿时的光景啊。

    ⑫母亲在一旁开心地有一句没一句地说着话,重重复复的,都是些走过的旧时光。母亲在那些旧时光里沉醉。

    ⑬月色潋滟,我的心放松似水中一根柔柔的水草,迷糊着就要睡过去了。母亲的话突然喃喃地在耳边响起,冬英你还记得不?就是那个跟男人打赌,一顿吃二十个包子的冬英?

    ⑭当然记得,那个粗眉大眼的女人,干起活来,大男人也及不上她。

    ⑮她死了。母亲语调忧伤地说,早上还好好的呢,还吃两大碗粥呢。准备到田里面锄草的,还没走到田里呢,突然倒下,就没气了。

    ⑯人啊,母亲叹一声。

    ⑰人啊,我也叹一声。心里面突然警醒,这样小扇轻摇,与母亲相守的时光,一生中还能有几回呢?暗地里打算好了,明日,是决计不回去的了,我要在这儿多住几日,好好握住这小扇轻摇的时光。