Kèo nhà cái5600ִԱھܱ2+26пչȾǿʱ䳤һ1700ִԱչΪһµĽڹЩִжһͻص̬طִǸɽؽִһڵҵķDZػԱ·ʱҪſԱ̴ʱһߵ50%
ںÿ뾭רڹ涨Χ(15%С20%)ȡλרƽֵϵͳλרҽֱϷֲ涨ʰΪʲô˵һֱҲDz˺ܾ뵽һ£ϲȥԺƾԺǶƽǿҲ
Ұбɵı¬ͻƼҾ3ۡǵձ22ձΪķͷǰԱ۽ǰ̳վdzǡѪг֮ԸΪƴǼټ˲ֻΪԽѹһ˸ıŻ˵ӹ۵Ͻͷǽǰ;ڸǰ;֮ϮΪȷʵڷҲǡռ족ڼִʱʹñӰµĺӢ̻ᾫز(JustinWelby)ʱʽΪ
ͻʾֳȷԵˮֳΪռ98%Ⲣζźˮֳȵˮֳ˽ŲȹҲֳٺͺܻӭ̶ٵ˸ںҺļ۸Ҫڴ2014ںˮֳƷIJڴٵIJ