第1个回答 2011-07-03
.......is good for my study.
第2个回答 2011-07-03
It is beneficial to my study.
第3个回答 2011-07-03
is beneficial to my study
is good for my study
is contributive (or contributory) to my study
has great effect on my study
help to my study本回答被提问者采纳
第4个回答 2011-07-03
he;p to improve my study