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如图所示,大正方形的边长为8厘米,小正方形的边长为6厘米,求阴影部分的面积。

“道光末年,(湖南平江)红茶大盛,商民运以出洋。岁不下数万金,泉流地上,凡山谷间,向种红薯之处,悉以种茶”,“浏阳以素所植麻,拔而植茶”。这说明( )
A . 中国茶叶种植技术获重大突破 B . 列强势力开始由沿海深入到内地 C . 中国被卷入资本主义世界市场 D . 传统农业和家庭手工业已经解体
已知复数 ,则 (    )
A . B . C . D .
They arrived in Beijing three days (以前).
噪声是一种严重的环境污染,小明想比较几种材料(毛衣、报纸、棉花、泡沫塑料)的隔音性能,来选择一种隔音性能好的材料做耳罩的填充物,实验器材除了待检测的材料外,还有:音叉、机械闹钟、鞋盒.

  1. (1) 本实验中适合做声源的是

  2. (2) 下面的表格是为了上述两种实验方案而设计的,其中与方案B对应的是表

    表一:

    材料

    毛衣

    报纸

    棉花

    泡沫

    响度

    最弱

    较弱

    表二:

    材料

    毛衣

    报纸

    棉花

    泡沫

    距离

    最短

    较短

  3. (3) 待测材料隔声性能由好到差的排列顺序为

对于平面内的点P与射线OA,射线OA上与点P距离最近的点与端点O的距离叫做点P关于射线OA的侧边距,记作φ(P,OA).

  1. (1) 在菱形OABC中,OA=2,∠OAB=45°.则φ(B,OA)=,φ(C,OA)=.
  2. (2) 在□ABCD中,若φ(A,BD)=φ(C,BD),则□ABCD是否必为正方形,请说明理由;
  3. (3) 如图,已知点C是射线OA上一点,CA=OA=2,以OA为半径画⊙O,点B是⊙O 上任意点,D为线段BC的中点.

    ①若φ(D,OA)= ,则φ(D,OB)=

    ②设φ(D,OA)=x,φ(D,OB)=y,求y关于x的函数关系式并写出自变量x的取值范围.

读下表,回答

表:非洲西海岸沿19°S的表层海水温度观测值

该海域沿岸(    )

A . 存在上升流,为热带雨林气候 B . 有暖流经过,为热带草原气候 C . 有寒流经过,为热带沙漠气候 D . 盛行东南风,为热带季风气候
文革期间,实际上是我国国家政治体制建设的一次重大倒退的是(   )
A . 各级革命委员会的成立 B . 红卫兵运动的兴起 C . “一月风暴”的发生 D . 各级人大、政协停止活动
数据-1,-2,0,3,5的方差是
若点P在第四象限,且到x轴的距离3, 到y轴的距离4,则点P的坐标为.
The tourists began to make(prepare) for the long journey.
Today is Friday. Tomorrow is . I often do my on the weekend.

在实数范围内有意义,则的取值范围是
下表为2016年11月5日和2016年12月21日人民币对美元的日收盘汇率。根据表中数据,在不考虑其他影响因素的情况下,可以看出(  )

时间

2016年11月5日

2016年12月21日

美元/人民币

1∶6.6711

1∶6.9489

A . 人民币的汇率升高 B . 美元的汇率下降 C . 美元对人民币贬值 D . 人民币对美元贬值
根据线段图列式

有关遗传变异的叙述正确的是(    )
A . 基因型为Dd的豌豆,能产生雌雄两种配子,且数量比接近1:1 B . 在基因工程中使用的DNA连接酶的作用是将互补的碱基连接起来 C . 将基因型为Aabb的玉米的花粉授到基因型为aaBb的玉米的雌蕊的柱头上,所结籽粒胚的基因型为AaBb,Aabb,aaBb,aabb D . 自然界中的变异主要是基因重组,所以基因重组是生物变异的根本原因
每个公民都应具备一定的安全常识。下列意外事故的处理方法错误的是(   )
A . 高楼起火,迅速坐电梯逃生 B . 图书馆内图书起火,可用二氧化碳灭火器灭火 C . 发现火势较大或有蔓延趋势的火灾,立即拨打119火警电话 D . 遭遇火灾险情时,应该用湿毛巾捂住口鼻,蹲下靠近地面或沿墙壁跑离着火区域
政府简政放权是自我革命,是要触动利益的,它不是剪指甲,是割腕,忍痛也得下刀。2015年我们必须继续下更大力气来推进简政放权。之所以坚持简政放权的根本原因是(  )

①是生产关系适应生产力发展规律的要求

②是解决经济基础与上层建筑矛盾的需要

③事物的自我否定是事物发展的根本途径

④可以厘清政府和市场的关系,激发市场活力

A . ①② B . ②③ C . ①③ D . ①④
阅读理解

    In the latest romance-drama, Descendants of the Sun (《太阳的后裔》), a handsome soldier Yoo Shi-jin(柳时镇) (Song Joong-ki)(宋仲基) meets the pretty doctor Kang Mo-yeon(姜暮烟) (Song Hye-kyo)(宋慧乔) in a hospital, and he doesn't hesitate to hit on her.

    The dialogue, which takes place early in the first episode(集), immediately indicates that this is no ordinary South Korean drama. There's no family feud (不睦), or love tangles, or guesses and misunderstandings. The 16-episode show is set in the fictional war-torn country of Uruk(乌鲁克). Song Joong-ki is the leader of a special warfare command unit, while Song Hye-kyo plays a doctor who works for a humanitarian medical organization. Both are sent in the midst of disaster and disease as part of their work with UN peacekeeping troops. Both know and show clearly what they want and what they hate.

    But what stands out the most are Song's skills as a pick-up artist(撩妹技能).

    Boldness and creativity are the key weapons in his arsenal. When Kang invites Yoo to drink wine with her, Yoo, who is not allowed to drink alcohol as a soldier, says, "There is a way." before kissing her. Forget about the "eighth-episode rule" . This kiss happens in the fourth.

    Humor also does the trick. On their first date in a cinema, Yoo says, "This is the most exciting moment of my life. The moment I am with a beautiful woman before the theater lights go out." When Kang tries to give Yoo a hard time, Yoo jokes, "I mistook you for a beautiful woman because it's dark."

    And actor Song Joong-ki, who just came back from two years of military service last May, makes sure he delivers his pick-up lines just right.

    "In Deep Rooted Tree (《树大根深》) and The Innocent Man (《善良的男人》), he [Song Joong-ki] showed he had the steel to play fearless and heartless men — that he could be taken seriously as an actor, despite his pretty face. In Descendants, he hits the emotional core of every scene, whether he has to be bold and amorous, guarded and mysterious, or sad,"said critic Foong Woei Wan in The Straits Times.

  1. (1) What is the relationship between Song Joong-ki and Song hye-hyo?
    A . lover. B . colleague. C . actor-director. D . doctor-patient.
  2. (2) Why do people say that the Descendants of the Sun is no ordinary South Korean drama?
    A . Because actors know and show clearly what they want and what they hate. B . It broke the previous Korean old story. C . It exits family feud and love tangles. D . The pick-up artist is unique and special.
  3. (3) When the Descendants of the Sun tells us that heterosexual(异性) contacts is important to have some quality including ____________.

    ①humor  ②Boldness and creativity  ③bold  ④emotional

    A . ①② B . ①②③ C . ②③④ D . above all
  4. (4) What is the article mainly about?
    A . Introduce a drama called the Descendants of the Sun. B . Song Zhongji could be taken seriously as an actor, despite his pretty face. C . The Descendants of the Sun open a new pattern to pick-up woman. D . The reason why the Descendants of the Sun gain success.
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