题干

下列植物具有种子的一组是(  )

A:石松、水绵

B:地钱、苔藓

C:银杏、水杉

D:裸蕨、肾蕨

上一题 下一题 0.0难度 选择题 更新时间:2018-04-26 03:01:30

答案(点此获取答案解析)

C

同类题2

阅读下文,完成后面题目。
                                                                                                  衡山路上的两个卖花少女
        ①我特别钟爱衡山路。我几乎每隔一段时间就要到衡山路来漫步,抑或拍些照片装点我的摄影簿。衡山路是从“上海西南的一颗明珠”——徐家汇开始,到淮海中路结束的,所以说衡山路等于连接着上海两个最繁华又最高档的商业区。一些有钱又悠闲的上海女子,往往逛了徐家汇的东方商厦、港汇广场、太平洋百货等著名商场后,就到衡山路漫步休息,最后再逛完淮海中路。大部分有文化层次的外地游客,则往往先到徐家汇看看徐光启的墓,因为上海人徐光启不仅是个科学家,还当过一代宰相,他的墓地就在徐家汇南边;再去游览一下徐家汇天主堂,因为它是上海保存至今最老最大的一座天主教堂;然后再到衡山路漫步。我呢,去过徐家汇天主堂,也看过徐光启的墓,但我去过次数最多的却是衡山路。
        ②这天,我是到衡山路去拍夜景的。
        ③我正在领馆广场前物色着镜头,突然身后传来清脆甜蜜的叫卖声:“先生,买枝花吧?”我回头一看,是两位十五六岁的少女,正笑吟吟地看着我。她们一手抱着一捆玫瑰,一手将其中的一枝玫瑰递到我的面前。两位少女都长得很清秀,穿得也很清纯得体,头上却滑稽地戴着只有幼儿园小朋友才喜欢戴的鲜花头饰。她们起劲地向我推销着玫瑰:“你看,多新鲜的玫瑰,买一枝吧?”“不。”我笑笑,举了举手里的照相机,歉意地摇摇头说,“我是来拍照的。”
        ④她们也不勉强,笑了笑,又叫卖着转向了别处。她们一会儿在咖啡馆门口等候顾客,一会儿又穿梭在露天酒吧。在霓虹灯的照耀下,她们就像两簇游动的鲜花,把衡山路的夜色点缀得更加迷人。我突然有点后悔起来:为什么不拍拍她们呢?也许这是一张更有意思的照片呢!可这时,那两个卖花少女已经消失在夜里……
        ⑤于是我又开始拍我的夜景——
        ⑥我拍了挂满盆花的围墙,拍了路边的油画长廊,拍了浪漫雅致的露天酒吧,拍了充满异国情调的音乐餐厅……
        ⑦正当我拍完豪华温馨的“星期五餐厅”的时候,突然发现坐在豪华餐厅里喝着饮料的两个少女竟是那么脸熟;再仔细一看,天哪,那两个悠悠喝着饮料的少女就是刚才向我推销玫瑰的卖花女,头上依然滑稽地戴着只有幼儿园小朋友才喜欢戴的鲜花头饰。
        ⑧这一发现,顿时就使我兴奋起来。我连忙走进去跟她们攀谈起来:“你们怎么像小孩似地戴着鲜花头饰?”“这样不是更加引人注目吗?”“你们的玫瑰花卖完了?”“卖完了”。“赚了多少钱?”“我赚了一百多。”“我赚了八十多”。两个少女争先恐后地向我报告着卖花的成果,就像学生向他们的老师报告自己的优秀成绩。我朝她们各自的桌面看了看,她们各点了一杯咖啡、一份冰淇淋和一些吃食。算一算价钱,按照“星期五餐厅”的高档收费,我估计,她们今天的卖花所得,已经所剩无几。
        ⑨我疑惑了,我问:“从报上获悉,上海南洋模范中学有个女中学生,靠课余卖花支撑起了一个发生了不幸而生活艰难的家。你们到衡山路卖花,难道也是为了贴补家用?……”“才不是呢!”那两个少女没听我说完就“咯咯咯”笑起来。也许是怕我误解了她们的卖花动机,笑完,她们竟tāotāo不绝地叙述起来:“卖花的目的可以是各种各样的,有的纯粹是为了赚钱,而我们不是。我们是一所重点中学的学生,我们觉得衡山路很有味道,喜欢到这里来看看。但光是看看似乎缺少点深度,能够参与其中,成为其中的一员才有意思呢?所以我们选择了卖花。我们到文化广场鲜花市场低价批发了一些玫瑰,然后到衡山路来高价出售,觉得非常有劲。我们一边卖花一边游览衡山路,赚了钱还可以找个有情调的地方消费消费。你看,这不是一举几得吗?” 她们说完,一口喝完咖啡,买单;然后出门拦了一辆出租车,潇洒地扬手而去……
        ⑩衡山路的夜景朦朦胧胧,神秘而迷人。看着出租车威风地远去,我不禁思绪万千: 现今的中学生真不简单,卖花还卖出了这么多名堂!但是不管怎么说,她们的出现,确实使神秘而迷人的衡山路变得愈加幽雅温馨,愈加美丽可人!

同类题5

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    Play allows children to use their creativity while developing their imagination and physical, cognitive(认知的), and emotional strength. Play is important to healthy brain development. Play allows children to create and explore a world they can master, conquering their fears while practicing adult roles. Undirected play allows children to learn how to work in groups, to share, to negotiate, and to resolve conflicts.

    Ideally, much of play involves adults, but when play is controlled by adults, children acquiesce(顺从)to adult rules and concerns and lose some of the benefits play offers them, particularly in developing creativity, leadership, and group skills. In contrast to passive entertainment, play builds active, healthy bodies. In fact, it has been suggested that encouraging unstructured play may be an exceptional way to increase physical activity levels in children, which is one important strategy in the resolution of the obesity problem.

    Children's development is critically influenced by appropriate, affective relationships with loving and consistent caregivers as they relate to children through play. When parents observe their children in play or join with them in child-driven play, they are given a unique opportunity to see the world from their children's vantage point as the child navigates a world perfectly created just to fit his or her needs. The interactions that occur through play tell children that parents are fully paying attention to them and help to build enduring relationships. Parents who have the opportunity to look at their children's world learn to communicate more effectively with their children aid are given another setting to offer guidance. Less verbal children may be able to express their views, giving their parents an opportunity to gain a fuller understanding of their perspective. Quite simply, play offers parents a wonderful opportunity to engage fully with their children.

    Play is essential to the academic environment. It ensures that the school setting attends to the social and emotional development of children as well as their cognitive development. It has been shown to help children adjust to the school setting and even to strengthen children's learning willingness. Social-emotional learning is best integrated(融合)with academic learning; it is concerning if some of the forces that enhance children's ability to learn are improved at the expense of others. Play and unscheduled time that allow for peer interactions are important components of social-emotional learning.