偶函数f（x）=Asin（ωx+φ）（A≠0，ω＞0，0≤φ≤π）的图象向右平移$\frac{\mathrm{\pi }}{4}$个单位得到的图象关于原点对称，则ω的值可以为（　　）

阅读下列短文，从每题所给的四个选项（A、B、C、和 D）中，选出最佳选项。

    Hello. I'm Jan from Mrs. Lake's class. My class wants to work together to help the public. We think we have found a great way to do this. Last month we did a class project on the highways near our town. We learned about the Adopt-a-Highway Program. This program brings people together to pick up litter along the roads. We think it would be a great idea for all students in our school to join the program and adopt（收养） a highway.

    Adopting a highway is not like adopting a pet. When a highway is adopted, only part of the highway is cared for by a group of people. The group agrees to work every week to keep its part of the highway clean. Each group gets its own sign that has the name of the group printed on it. The sign is put up at the side of the road . This sign lets drivers know who is keeping that area of the road clean.

The Adopt-a-Highway Program is a great way for people to help their environment look nicer. Also, the government does not have to send out as many road workers. This saves money. Finally, people may try harder to keep roads clean if they see people, especially teenagers like us, cleaning them up.

     We will need helpers to care for our adopted highway. If you want to feel great and keep our roads clean，please come with your parents to the meeting next week. We will meet in Mrs. Lake's room on Wednesday at 6:00 P.M. At the meeting, we will talk about which roads are the dirtiest as a result of people's unkind acts. Then we'll try to pick an area to adopt and clean.

    I look forward to seeing you at the meeting. Remember to keep our roads clean!

在拉丁美洲，推翻美国扶植的傀儡政权，建立革命政府，并走上社会主义道路的国家是（　　）​

2015年10月23日，中央宣传部、组织部、文明办等部门联合发文，在全国开展宣传推选100个最美志愿者、100个最佳志愿服务项目、100个最佳志愿服务组织、100个最美志愿服务社区等志愿服务“四个100”先进典型活动，引导人们积极参加志愿服务，营造向上向善、互帮互助的浓厚社会氛围。这有利于（  ）

①推动文化体制改革，解放和发展文化生产力

②加强思想道德建设，提高公民思想道德修养

③树立社会主义荣辱观，推进社会主义核心价值观建设

④提高公民科学文化修养，形成崇尚科学的良好氛围