A:What class are you in?
B:Where are you from?
遵义已被列为我国爱国主义的教育基地,下列历史事件与之联系最为紧密的是( )
例:凝神→神奇→奇特→特色→色彩
批评→____→____→____→____
铺路→____→____→____→____
精美→____→____→____→____
缺点→____→____→____→____
如图,在直角△OAB中,∠AOB=30°,将△OAB绕点O逆时针旋转100°得到△OA1B1,则∠A1OB=____ °.