设椭圆x24+y2=1的焦点为点F1，F2，点P为椭圆上的一动点，当∠F1PF2

    美国宇航局称，今年2月发生在智利的里氏8.8级大地震冲击力巨大，可能移动了地球轴心，据模拟结果显示，智利大地震可能加快了地球自转速度，使地球一天的时长缩短了1.26微秒（1微秒等于百万分之一秒）。据此，回答1—3题。

1、唐山大地震的震级为7.8级，和智利地震相比较能量少的倍数是[ ]

A、30倍

B、300倍

C、90倍

D、900倍

2、智利地震发生在南极洲板块和 [ ]

A、美洲板块的生长边界

B、印度洋板块的生长边界

C、亚欧板块的消亡边界

D、美洲板块的消亡边界

3、地球自转一圈360°需要的时间是[ ]

A、一个恒星日

B、一个太阳日

C、一个恒星月

D、一个恒星年

根据乔姆斯基20世纪50年代建立的形式语言的理论体系，语言的文法被分为四种类型，即：O型(上下文有关文法)、1型(上下文相关文法)、2型(上下文无关文法)和3型(正规文法)。其中2型文法与 (66) 等价，所以有足够的能力描述多数现今程序设计的语言的句法结构。一个非确定的有限自动机必存在一个与之等价 (67) 。从文法描述语言的能力来说， (68) 最强， (69) 最弱，由四类文法的定义可知： (70) 必是2型文法。

（68）处填（）。

A．0型文法

B．1型文法

C．2型文法

D．3型文法

TS said that everyone has a changing circle of friends. However, no matter how frequently we renew our phone books, some names always remain. These names remind us of the good times we spent together with our friends. Though we may not see them every  day, they will always stay in our hearts.

Tom was often called "Big Head" at school because of his extraordinarily large head. He was one of my close friends at primary school. But since graduation, we have been studying in different cities and haven't seen each other for a long time.

Several days ago, I received an e-mail saying that my former classmates from primary school were holding a party to get together and chat about past memories. I was so excited because [ would get to see Tom again. What would he look like now? Would we still feel as close to each other as we had done back then? I was a little frightened about what I would find.

When I arrived at the party, I did manage to recognize Tom. However, he was much taller than he had been before. What's more, his head was no longer big.

"Hi, Buddy. Do you recognize me?" Tom walked towards me.

"Of course. How could I ever forget our ' Big Head' ," I said jokingly, "But where has your big head gone?"

"Haha, maybe it didn't keep up with the steps of time and stayed in the past," Tom patted his own head and answered with a laugh.

All my misgivings suddenly disappeared. I realized that time had changed us outwardly, but our friendship hadn't changed at all. I chatted happily with Tom about our shared experiences in primary school.

Then I looked around the small room and saw different faces, both familiar and unfamiliar, but none of them the faces of strangers. The whole party was filled with a warm atmosphere. Everyone was lost in the sweet memories of childhood. They forgot all their present-day stresses and pressures.

"Hey, what are you thinking about? Come and get some pizza!" A call from a friend woke me up from my thoughts. I hurried towards the table. "Wait! That biggest piece is mine!"

小题1:Why are some names always in our phone books?

A．Because everyone has a changing circle of friends.

B．Because we sometimes forget to renew phone books.

C．Because we'll never forget some of our friends.

D．Because our circle of friends will not change.小题2:According to the passage, which of the following statements is TRUE?

A．Tom has changed a lot since primary school.

B．Tom invited the author to the get-together party by email.

C．The author recognized Tom immediately because of his big head.

D．Tom couldn't recognize the author at the first sight.小题3:What does the underlined word "misgiving" mean (in para. 8 )?

A．expectation and excitement

B．worries and doubts

C．stresses and pressures

D．shyness and nervousness小题4:The author writes the last paragraph to show

A．others can't understand what the author is thinking about

B．The pizzas are not adequate for everyone in the party

C．the author wants to have a big pizza very much

D．the author enjoys the warm atmosphere of the party greatly小题5:Which of the following proverbs can be used to conclude this passage.'?

A．A friend in need is a friend indeed.

B．Time reveals a person's heart.

C．Friends are like wine; the older, the better.

D．A faithful friend is hard to find.

在注册咨询工程师(投资)的基本素质中，高尚品德和奉献精神包括______。

A．有上进心
B．尊老爱幼
C．思想好
D．热情高
E．作风正

协同通信业务平台由（）省负责维护。

A.上海

B.北京

C.浙江

D.天津