越来越“懂你”的网络定位服务，①____，也会给个人带来潜在威胁。手机APP携带的定位系统能准确掌握个人的行踪轨迹。就像一把双刃剑，手机APP携带的定位功能一方面方便了个人生活，②____。行踪轨迹毫无争议地属子个人隐私范畴，此类信息的暴露不仅可能会令人产生不舒适感，③____。

 ①      ②CH₂=CH₂ ③        ④CH₃CH₂CH₂CH₃

⑤                ⑥     ⑦CH₃CHO            ⑧

2016年10月24日至27日，中共中央十八届六中全会在北京召开，党中央对全面从严治党作出全面统筹战略部署，制定了新形势下党内政治生活若干准则，会议强调：“办好中国的事情，关键在党，关键在党要管党、从严治党。”党要管党、从严治党的理由是（    ）

①国家大事必须有***决定

②***是中国特色社会主义事业的领导核心

③使生产关系更好的适应生产力发展要求

④使上层建筑更好的适应经济基础发展要求

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）每处错误及修改均仅限一词；

2）只允许修改10处，多者（从第11处起）不计分。

    Yesterday morning, I heard a piece of news which my friend Li Lei was admitted to the hospital because of the car accident. The day before yesterday, Li Lei is going to a bookstore to buy a book. He was very carefully when he got to the crossroads. He crossed the street when the traffic light turned to green. However, if he just went to the middle of the street, a car suddenly appeared at his right-hand side and came directly towards him. The driver drove fast and it was too late to avoiding it. Li Lei was knocked by the car. She was carried to the hospital immediately and had a surgery. Last night, I visited him. He looked pale unless he was out of danger.