针对粮肉食用油等食品价格持续上涨，国务院法制办牵头修订了《价格违法行为处罚规定》．2013年全国共查处价格违法案件5.2万件，查处串通涨价、哄抬价格案件70起，有力地维护了市场的正常秩序。这从一个侧面表明，政府在履行（    ）

四大措施解决千年冻土问题；2006年7月1日，青藏铁路实现了全线贯通，打破了美国的火车旅行家保罗•泰鲁“有昆仑山脉在，铁路就永远进不了拉萨”的断言，大长了中国人的志气．在修建青藏铁路时，需要解决两大难题：一是铁路要穿越“千年冻土”区，需要保证路基的稳定性；二是高原气压低、氧气含量低，需要保证施工人员及乘客的安全性．我国科技工作者在解决两大难题上做出了许多创新和发明．

四大措施解决千年冻土问题

①热棒：天然“制冷机”

进入两大滩冻土区，路基两旁插有一排排碗口粗细、高约2m的铁棒（如图甲）．铁棒间隔2m，一直向前延伸，我们称它热棒．热棒在路基下还有5m，整个棒体是中空的，里面灌有液氨，棒的顶端是散热片，这样棒体就相当于一个天然“制冷机”．

②抛石路基：廉价“土空调”

在青藏铁路路基内部，还有一种廉价而有效的“土空调”，在土层路基中间，填筑了一定厚度的碎石，保证了冻土层的温度不随外界气温的变化而变化，从而保护了冻土的完好性．

③遮阳板：隔热“外衣”

遮阳板路基是在路基的边坡和坡石上架设一层用于遮挡太阳辐射的板材，完全消除太阳对路基的辐射加热作用．

④以桥代路：“最后绝招”（如图乙）

增氧机解决高原气压低、氧气含量低的问题

在沿途建立氧气制造站、列车配有完整的供氧系统等，确保了施工人员的安全和旅客的乘车的舒适度．

    I could feel the judging eyes of my family burning a hole into the back of my head as I picked up my phone. All of a sudden, the chattering in the living room died and all I could hear was the sound of the turkey sizzling (发出嘶嘶声) in the oven.

    “Look at her! She's been on her phone all day long! It's all your fault! Children will never respect elders if they are not taught how to behave! ” my grandmother shouted.

    I was very shocked and angry! I opened my mouth to say something, but words failed me and I just sat down quietly on the chair like a mouse in its trap. I thought “Here we go again.” I truly love my family and I would do anything for them. I also know that they would do anything for me as well. However, there are moments that make me feel that they are just stuck with me. They all agree on one thing: technology is wrecking me.

    If I am going to be treated like a child or completely ignored, I will most likely not enjoy your company, and I feel that this applies to (适用于) the majority of the people. So I sometimes simply shut myself in my room and listened to the voices coming from the living room, thinking: They all grew up in a world so different that it amazes me how they have actually gotten this far. They did not have phones or any type of advanced technology, which is both good and bad. Bad because they had almost no type of fast communication, and good because they were forced to interact (互动) with one another, which is something today's society is lacking in. However, maybe if they made an effort to be aware of how things work nowadays, they would not be so against everything.