在一个密闭的容器内有甲、乙、丙、丁四种物质，在一定条件下反应一段时间，测得反应前后各物质的质量如下表：

对该反应，下列描述中正确的是（　　）

m＝（1，sinA），n＝（2，sinB），且m∥n．

（Ⅰ）求 $b$ ， $c$ 的值；

（Ⅱ）求角A的大小及△ABC的面积．

亚洲经济最发达的国家是

根据汉语提示完成句子
(1)He ____ (坚持) that she was the perfect girl to play the lead role in the play.            
(2) What about going to the concert with me tonight?    
     Sounds good. But I don't feel well. I prefer to stay at home ____ (代替) of staying out.
(3)We are sure you will become famous____  (立即) if you successfully host the show.
(4)Bill Gates and some others promised to ____  (奉献) much of their money to Charity.
(5) Why was the young man arrested?   
     He was charged of ____  (强行闯入) into the bank's computer systems and stealing important information.
(6)Tom got along with all his neighbors ____  (除了) the man who looked strong. 
(7)Has the man ____  (证明) that he was at another place when the accident happened?
(8)Was he out of ____  (呼吸) after running for a quarter around the playground?
(9)The victim obviously put up a good fight against the ____  (冷酷的) murderer.

阅读文言文，回答问题

卖口技者要客肃听

徐珂

       有卖口技者，佚其姓氏，衣败絮，履脱底，尝手持抚尺往来于松江。松江某绅宴会无所乐，客请以口技进，绅欣然，则默默无对，木立于旁。绅仰首笑曰：“客能乎？”曰：“能也。”曰：“客何能？”曰：“无不能也。”绅一笑置之，命尽奏其所能。卖技者乃揖众客曰：“吾技虽贱，然不凝神肃听，则请毋奏之为愈也。”一座诺之。卖技者趋入帏，抚尺一下，阖室寂然。忽闻巨狮出谷声，哀啼病呼声，树下群犬惊惶声，狮默然喘息声，犬奔走乱吠声，狮惊吼声，逃遁声，犬奋追声，村人旁观鸣掌呼笑声。至此又抚一尺，则诸声寂然，卖技者启帏出矣。

（选自《清稗类钞》）