如图,在正方形ABCD的外侧,作等边三角形ADE,则∠AEB=( )
A:10°
B:15°
C:30°
D:150°
写出近义词
突然—____ 决定—____ 危机—____
改革是推动历史前进的动力,商鞅变法措施中对废除奴隶主旧制度具有决定性意义的是( )
________furs in all his life, the old man's biggest wish was to buy a diamond necklace for his beloved wife.