题干
He is very busy, so he hardly ______ some time _______ leisure activities.
A：spend; on
B：spent; in
C：spends; on
D：spents; in
答案(点此获取答案解析）
C
He is very busy, so he hardly ______ some time _______ leisure activities.
A：spend; on
B：spent; in
C：spends; on
D：spents; in
，b＝3，则△ABC解的情况( )