把一个长方形框架拉成一个平行四边形后，它的周长(   )。

    Two weeks after the popular show Chinese Poetry Conference, a new program, Reader (朗读者), has become much ____ (popular) than it.

    The weekly talk show, hosted by the famous hostess Dong Qing, invites people from all walks of life ____ (read) aloud poems, essays and book excerpts (节选) they like or wrote. The guests who join____ it also share their own life stories and explain the reason why particular pieces touched their hearts. Viewers can often be moved to tears ____ they listen to those stories.

    Three days after its first broadcast on CCTV-1，Readers has been ____ (great) successful and interested thousands of people. Through the poetic words, Readers has made ____ public pay attention to the ____ (lose) habit of reading aloud. Readers is one of the cultural TV ____ (program) to restore (恢复) the country's love for literature. Its success is very ____ (encourage) in today's television world where TV series ____ (play) a leading part so far.

阅读下面两个文言语段，完成后面问题 。
        【甲】于是入朝见威王，曰：“臣诚知不如徐公美。臣之妻私臣，臣之妾畏臣，臣之客欲有求于臣，皆以美于徐公。今齐地方千里，百二十城。宫妇左右莫不私王；朝廷之臣莫不畏王；四境之内莫不有求于王。由此观之，王之蔽甚矣。”
         王曰：“善。”乃下令：“群臣吏民能面刺寡人之过者，受上赏；上书谏寡人者，受中赏；能谤讥于市朝，闻寡人之耳者，受下赏。”令初下，群臣进谏，门庭若市。数月之后，时时而间进。期年之后，虽欲言，无可进者。
         【乙】（魏文侯）使乐羊伐中山，克之；以（之）封其子击^①。文侯问于群臣曰：“我何如主^②？”皆曰“仁君。”任座^③曰：“君得中山，不以封君之弟而以封君之子，何谓仁君？”文侯怒，任座趋^④出。次问翟璜，对曰：“仁君。”文侯曰：“何以知之？”对曰：“臣闻君仁则臣直。向者任座之言直，臣是以知之。”文侯悦，使翟璜召任座而反之，亲下堂迎之，以为上客。
【注】①击：魏文侯的儿子。②何如主：怎样的君主。③任座：人名，魏国的大臣④趋：快走。

外无期功强近之亲，内无应门五尺之僮，____，形影相吊。（李密《陈情表》）

若a>0，且$\left|a\right|>\left|b\right|$，则a-b是（　　）