【单选题】Li Ping is no longer _____ he was ten years ago.
【简答题】如图,P在∠AOB的内部,PC⊥AO于C,PD⊥OB于D,PD=PC,当∠AOP=(2x-10)度,∠BOP=(x+5)度时,∠AOB=______度.
【单选题】The tip of our tongue are sensitive to ________ taste.
【判断题】To make the sound /m/, we must open our mouth and raise our tongue tip to the roof of the mouth.
【判断题】To make the sound /m/, we must open our mouth and raise our tongue tip to the roof of the mouth.
【简答题】如下图所示,在 ABC中,∠B=∠C,PD⊥BC,DE⊥AB,∠AFD=158°,则∠ACD= _____________度。
【简答题】如图所示,已知∠AOB=50°,PC∥OB,PD平分∠OPC,则∠APC=( )度,∠PDO=( )度.
【简答题】如图,P在∠AOB的内部,PC⊥AO于C,PD⊥OB于D,PD=PC,当∠AOP=(2x-10)度,∠BOP=(x+5)度时, ∠AOB= 度.