现有两枚质地均匀的正方体骰子，每枚骰子的六个面上都分别标有数字1、2、3、4、5、6．同时投掷这两枚骰子，以朝上一面所标的数字为掷得的结果，那么所得结果之和为9的概率是（   ）

小刚同学拿着酒精灯从旁边实验桌上正在加热的另一酒精灯上点燃后，按如图所示装置测量水的温度，做完实验后迅速吹灭酒精灯，整理实验器材．小刚的实验过程中四处错误：

（1） ____；

（2） ____；

（3） ____；

（4） ____

​

      Nancy and Sheila are in the same class. They are friends. Nancy wants to invite Sheila to dinner on Sunday. But Sheila doesn't know the way. Now Nancy is telling her.

"It's easy. You can take No. 4 bus. After you get off at Red Road. cross it and take the first turning on the left. Walk along the road for about five minutes. and then you'll see a big tree. Go straight on for about a hundred meters. and you will see a big red house. This is not my home. Go past the big house about four hundred meters. and you'll see a small yellow house beside a little tree. Then you can open the door with your foot."0

    "With my foot?" asks Sheila. "Why?"

    "Well. you won't come to my house empty-handed(空手地)， will you?"  answers Nancy.

化学与科学、技术、社会和环境密切相关．下列有关说法正确的是（   ）

2015年12月9日，山西省人民检察院依法对受贿数额高达2个亿的山西省环保厅厅长、省委巡视组原组长刘向东决定逮捕。这是十八大以来，首个被依法逮捕的省级巡视组长。这体现了法律的作用是（    ）

①法律面前人人平等                                         ②法律靠国家强制力保证实施

③打击违法犯罪，维护人民的根本利益         ④有力地维护社会秩序、维护国家和社会的利益