肌细胞内的肌质网是由大量变形的线粒体组成的，由此可推测肌质网的作用是（　　）

阅读下列材料，回答问题。

材料一：见图。

材料二：战略导弹部队是随着中国导弹部队的建立和发展而发展起来的……1966年7月1日，中国战略导弹部队领导机关在北京宣布成立，周恩来总理亲自为它命名：第二炮兵。

材料三：近年来，中国战略导弹部队取得了近千项科技成果。导弹自动化测试系统的研制成功，使部队测控技术一步跨入世界先进行列；……经过20年的发展，中国战略导弹部队武器装备初步形成固体与液体并存，核导弹与常规导弹兼有，近程、中程、远程和洲际导弹齐备的武器系统。

蔡英文拒绝承认“九二共识”，一意孤行（   ） 

①说明了世界向多极化方向发展  ②破坏国家统一，不利于民族团结，只能是死路一条

③不利于两岸和平稳定与繁荣发展  ④导致中国的和平统一难以实现

近年来，中国政府在出口贸易上不仅强调继续稳定一般性产品出口，还全力支持中国装备、中国技术走出国门。目前，中国企业在铁路、能源、基建、工程等方面的“走出去”步伐已经取得一定成效，积累了一定经验。中国高端装备“走出去”（  ）

    Michael Greenberg is a very popular New Yorker. He is not famous in sports or the arts, But people in the streets1him, especially those who are2

    For those people, he is "Gloves" Greenberg. How did he get that3? He looks like any other businessman, wearing a suit and carrying a briefcase (公文箱). But he's4 His briefcase always has some gloves。

    In winter, Mr. Greenberg does not5like other New Yorkers, who look at the sidewalk and6the street. He looks around at7. He stops when he8 someone with no gloves. He gives them a pair and then he9, looking for more people with cold10.

    On winter days, Mr. Greenberg11gloves. During the rest of the year, he12gloves. People who have heard about him also 13him gloves, and he has many in his apartment.

    Mr. Greenberg 14doing this 21 years ago. Now, many poor New Yorkers know him and15his behavior. But people who don't know him are sometimes16him. They don't realize that he just wants to make them17.

    It runs in the18. Michael's father always helped the poor as he believed it made everyone happier. Michael Greenberg feels the19. A pair of gloves may be a20thing, but it can bring warmth in cold winter days.