题干
一 Mary seems relaxed during the interview.
— Yeah. She's always so confident.
A：not calm
B：not worried
C：not young
答案(点此获取答案解析）
B
一 Mary seems relaxed during the interview.
— Yeah. She's always so confident.
A：not calm
B：not worried
C：not young
，
，则tan2x=" " ( )
