辨字组词。
赐____
矿____
埃____
媒____
踢____
旷____
挨____
谋____
We saw some birds. beautiful.
如图,已知∠AOB=20°.
(1)若射线OC⊥OA,射线OD⊥OB,请你在图中画出所有符合要求的图形;
(2)请根据 (1)所画出的图形,求∠COD的度数.
亚洲没有濒临( )
I can't the ball. Where is it?