I had a________experience yesterday.The brake of my electrical bike failed and I was very________then.
A:terrifying;terrified
B:terrifying;terrifying
C:terrified;terrified
D:terrified;terrifying
选择合适的字填空。
①跳 ②听 ③讲 ④玩 ⑤打 ⑥踢
____绳 ____足球 ____故事
____音乐 ____排球 ____游戏
若a=50.5,b=logπ3,c=log2sin3π5,则( )