A:立法
B:决定
C:审议
D:表决
(____) 1. A. shine B. ship C. school D. shop
(____) 2. A. book B. cook C. food D. good
(____) 3. A. which B. who C. what D. where
(____) 4. A. dress B. drink C. drive D. tree
(____) 5. A. think B. mouth C. there D. thank
在△ABC中,AC=BC,∠ACB=90°,将△ABC绕点A旋转60°到△ADE的位置,点C的对应点为E,连接CD,若AC=BC=1,则CD的长为____.