题干
——Can you tell me whom the play ______ in the 1990s?
——Sorry, I don't know.
A：was written by
B：was written
C：is written
D：1s written by
答案(点此获取答案解析）
A
——Can you tell me whom the play ______ in the 1990s?
——Sorry, I don't know.
A：was written by
B：was written
C：is written
D：1s written by
中,
的面积
,则
与
夹角的取值范围是 （ ）