题干
----I’ll tell Mary about her new job tomorrow.
---- You_____ her last week.
A：ought to tell
B：would have told
C：must tell
D：should have told
答案(点此获取答案解析）
D
A：ought to tell
B：would have told
C：must tell
D：should have told
为公比q＞1的等比数列，若
是方程
的两根，则
的值是（ ）
