实现消费者均衡的条件是（   ）

总需求曲线（    ）             

边际效用递减规律和需求定理。

发挥我国社会主义新型政党制度优势，坚持长期共存、（   ）、肝胆相照、荣辱与共，加强同民主党派和无党派人士的团结合作，支持民主党派加强自身建设、更好履行职能。

考评管理人员的协作精神主要通过向（   ）获取信息。  

选择题

　　When Bill de Blasio ran for New York City mayor last year, he promised to end a controversial （有争议的）, citywide cell-phone ban（禁令）in public schools, which is not equally enforced in all schools. Now, under his leadership, the city is preparing to end the ban. It will be replaced by a policy that allows phones inside schools but tells students to keep them packed away during class.

　　Many schools have a rule about enforcing the ban that says, “If we don't see it, we don't know about it.” That means teachers are OK with students bringing in cell phones, as long as they stay out of sight and inside bags and pockets.

　　But at the 88 city schools with metal detectors, die ban has been strictly enforced. The detectors were installed to keep weapon out of schools，but the scanners（扫描器）can also detect cell phones. So students at these schools must leave their phones at home or pay someone to store it for them.

　　The ban was put into place in 2007 under mayor Michael Bloomberg. Ending the ban will also likely end an industry that has sprung up near dozens of the schools that enforce the ban. Workers in vans（厢式货车）that resemble food tracks store teens' cell phones and Other devices for a dollar a day,

　　Critics of the ban say cell phones are important safety devices for kids during an emergency. They also say that enforcement of the ban is uneven and discriminatory. Where the ban is enforced, it puts a disadvantage on students who can't afford to pay to store their phones.

　　Before putting an official end to the cell-phone ban, city education officials are working on creating a new policy. It will include rules about not using the phones during class or to cheat on tests.

　　1. Which of the following is the main idea of the passage?   1   

　　A. New York City will give financial aid to poor students.
　　B. New York City plans to restrict cell phone use in libraries.
　　C. New York City will soon end a ban on cell phones in schools.

　　2. Students pay    2    a day to leave their cell phones in a van parked near their school.

　　A. a dollar
　　B. two dollars
　　C. five dollars

　　3. Metal detectors were installed in 88 city schools, mainly to keep    3    out of schools.

　　A. cell phones
　　B. weapons
　　C. drugs

　　4. The word discriminatory in Paragraph 5 probably means    4    .

　　A. necessary
　　B. tough
　　C. unfair

　　5. According to the passage, which of the following statements is TRUE?   5   

　　A. After the cell-phone ban is ended, students can use their phones during class.
　　B. The cell-phone ban is equally enforced in all public schools.
　　C. A phone-storage industry has appeared outside the 88 metal-detector campuses.

习近平总书记指出，（ ）是一个民族进步的灵魂，是一个国家兴旺发达的不竭动力，也是中华民族最深沉的民族禀赋。

党的十八大以来，我们从解决突出生态环境问题入手，注重点面结合、标本兼治，实现由系统治理到重点整治的重大转变。

在完全竞争条件下，与平均收益曲线重叠的是（     ）

What means of transportation would Mike NOT like to use for his trip?