如图,∠AOP=∠BOP=15°,PC∥OA交OB于C,PD⊥OA于D,若PC=6,则PD等于( )
根据句意及首字母提示完成单词(1)How many c____ are there in the world?(2)Can you write to me s____ ?(3)People in France do not like s____ English.(4)Koalas(树袋熊)come from A____ .(5)Miyoko l____ in Tokyo, Japan.
“人类有许多高尚的品格,但有一种高尚的品格是人性的顶峰……”苏霍姆林斯基这句话中的高尚品格指的是( )