某学校七年级三班有50名学生，现对学生最喜欢的球类运动进行了调查，根据调查的结果制作了扇形统计图，如图所示．根据扇形统计图中提供的信息，给出以下结论：

①最喜欢足球的人数最多，达到了15人；

②最喜欢羽毛球的人数最少，只有5人；

③最喜欢排球的人数比最喜欢乒乓球的人数少3人；

④最喜欢乒乓球的人数比最喜欢篮球的人数多6人．

其中正确的结论有（　　）

       These days computer games have bcome more and more popular in many cities and towns. A lot of small shops along busy 1have changed into computer game houses in order to get more 2. These places are always crowded with people
       In the computer game houses, people 3a lot of money matching on the machine. It's4for one to beat a computer, but one can do well after trying again and again. People want to5 when they play computer games. The more they6, the more they want to win, and at last they even can't 7without it.
       The result is that some people don’t want to8and they play in computer game houses for hours and hours. For school boys, things are 9. They don't want to have10. When school is over, they rush to the computer houses near their 11. Some of them can get enough money from their 12 Some of them are not13to get the money. So they have to steal or rob others' and become14 . Computer game addiction(上瘾) is a 15problem in our life. Something has to be done to stop it.

小明的墙上挂着一个电子表，对面的墙上挂着一面镜子，小明看到镜子中的表的时间如图所示，那么实际的时间是（   ）

实例一：假肥大性肌营养不良，患者几乎全部为男性，在成年前因所有肌肉纤维坏死而死亡，无生育能力。致病基因是位于X染色体上的隐性基因。

实例二：鸡的性别决定方式是ZW型（♀ZW、♂ZZ）。鸡的芦花（A）与非芦花（a）由位于Z染色体上的基因决定。