A:造福/噪声模样/模范稽首/滑稽愤慨/气概
B:沸腾/吹拂整饬/炽热提防/堤岸 鸡肋/勒索
C:殉职/徇私切磋/蹉跎贻误/怠慢摈弃/屏气
D:羸弱/赢利字帖/体贴蹊跷/骁勇 痉挛/浸染
边长分别是下列各组数的三角形中,能组成直角三角形的是( )
Huang Wei rides a bike very well. Who taught him? —No one. He taught _________.