模式查找like ’ba%’，下面（）结果是可能的。

A.select book_name，book_price from book ；
B.select *from book；
C.select book from book_name，book_price ；
D.select *from book book_name，book_price；

A.select *from xs group by 学号desc；
B.select *from xs order by 学号asc
C.select *from xs order by 学号desc；
D.select *from xs 学号order by；