阅读材料，运用《市场考察》的有关知识，简要回答问题。

    东北地区曾是新中国工业的摇篮，经济以重工业为主。工业结构单一、传统产品占大头，“原”字号和“初”字号产品居多，即原材料和初级产品占比很高。国有企业活力不足，民营经济发展不充分，产品结构不适应市场变化。2016年5月25日，******在黑龙江考察调研时强调，要闯出一条新形势下振兴老工业基地发展的新路。在优化产品结构中，要着力改造升级“老字号”，深度开发“原字号”，培育壮大“新字号”。

   联系上述材料，从我国基本经济制度的角度，说明怎样才能实现改造升级“老字号”，深度开发“原字号”，培育壮大“新字号”。

下列朝代中在北京定都的是（    ）

From:    annel@freemai14all.com    Sent: Wed., Oct. 19

To:      tss_liam@kidstarmail.net

Subject: Hello!

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Hi, Liam!

      So you're my new pen friend. Let me tell you a bit about myself. I'm 14 years old and I live in Calgary, CanadaI have two older brothers, Brian and Sam. I'm the only girl.

      I love sports and I'm always looking for exciting new hobbies to try. I like playing baseball in winter.

      It's fun beating the boys! But summer is my favourite time of the year. I love skateboarding and rock climbing in summer.

     Skateboarding's great because it's so fun and easy to learn! I often skateboard after school. There are many placesin the park where I can do stunts. I'm good at stunts like jumping and turning the skateboard!

     Rock climbing is also really fun. I usually climb with my dad on weekends. We can't do it on real mountains very often because we live in the city. We do indoor rock climbing instead but it's not as challenging.

    So that's me! How about you? Please write back soon!

Bye for now!

Anne