A. off
B. on
C. of
D. in
第1题:
第2题:
要找出对同一部电影评论次数在3次及以上的评论者姓名,下列语句不能实现该功能的是——
A.select name from reviewer,rating where reviewer.rid=rating.rid group by reviewer.rid having count(stars)>=3
B.select name from reviewer A where (select count(stars) from rating B where A.rid=B.rid group by rid)>=3
C.select name from reviewer where (select count(stars) from rating where reviewer.rid=rating.rid)>=3
D.select name from review,rating where reviewer.rid=rating.rid and count(stars)>=3 group by revie
第3题:
43、要找出对同一部电影评论次数在3次及以上的评论者姓名,下列语句不能实现该功能的是
A.select name from reviewer,rating where reviewer.rid=rating.rid group by reviewer.rid having count(stars)>=3
B.select name from reviewer A where (select count(stars) from rating B where A.rid=B.rid group by rid)>=3
C.select name from reviewer where (select count(stars) from rating where reviewer.rid=rating.rid)>=3
D.select name from reviewer,rating where reviewer.rid=rating.rid and count(stars)>=3 group by rev
第4题:
There are nations whose lack of contact with the outside with the outside world has()poverty.
Afallen into
Bconsisted in
Cresulted in
Dcome up to
第5题:
要找出对同一部电影评论次数在3次及以上的评论者姓名,下列语句不能实现该功能的是——
A.select name from reviewer,rating where reviewer.rid=rating.rid group by reviewer.rid having count(stars)>=3
B.select name from reviewer A where (select count(stars) from rating B where A.rid=B.rid group by rid)>=3
C.select name from reviewer where (select count(stars) from rating where reviewer.rid=rating.rid)>=3
D.select name from review,rating where reviewer.rid=rating.rid and count(stars)>=3 group by revie