在 △ A B C 中设其各边长分别为 a b c 外接圆半径为 R 求证 a 2 +-X题卡

didn’t; am going to don’t; would

don’t; will didn't; will

It' s repaired It has been repaired

It's being repaired It had been repaired

as that which what

脊梁　　贫瘠　　给予　　济济一堂　　刀枪剑戟　　潜心　　虔诚　　掮客　　钳口结舌　　黔驴技穷　　悄声　　硗薄　　蹊跷　　敲骨吸髓　　愀然作色　　埋怨　　颟顸　　螨虫　　瞒天过海　　蛮横无理

has grown have grown grew are growing

those one both that

一幢／经幢奔赴／投奔哪里／哪吒囚禁／禁受模存／模真切除／切磋脏乱／内脏潦倒／倒塌

if when which since

sceptical addicted available sensitive

剽掠　　漂染　　骠悍　　瓢泼大雨　　心里发飘　　韶华　　艄公　　绍剧　　年高德劭　　少安毋躁　　睥睨　　裨将　　稗官　　俾众周知　　髀肉复生　　秕谷　　毗邻　　仳离　　如丧考妣　　蚍蜉撼树

Before Where Unless Until

Attend To attend Attending Having attended

hopes to hopes so hopes not hopes for

could express would express

could have expressed must have expressed

broken up finished up <

迥乎（jǒng）苑囿（yòu）沃野（wò）屏障（píng）绵亘（gèn）夯筑（hāng）北麓（lù）峪口（yù）庐朐（qú）部署（shǔ）驿站（yì）遮断（zhē）享殿（diàn）附近（fù）被迫（pò）遗址（zhǐ）

诚惶诚恐诚心诚意诚然诚恳待人移风易俗平易近人交易轻而易举义不容辞无情无义义愤顾名思义延年益寿精益求精利益多多益善

according to regardless of in addition to in terms of

在 △ A B C 中，设其各边长分别为 a , b , c ,外接圆半径为 R ，求证： ( a ...