在直角△ABC中,∠C=90º,AC=BC,BD平分∠ABC,DE⊥AB于E,若CD=3,则AD的长度是( )
下列物品所用的主要材料属于天然纤维的是()
⑴ ____
⑵ ____
⑶ ____
⑷ ____
⑸ ____
A. One little teddy bear singing under the desk.
B. Two little dogs talking on the chairs.
C. Three little teddy bears jumping on the bed.
D. Jenny calls the doctor.
E. No more teddy bears playing on the bed.