听力原文:W: This food is terrible!I Can't even finish my dinner.
M: I know.you think with all the money we paid for room and board,the university could hire a better food service.Where are you headed next?
W: I'm going over to the student recreation center to play some bridge.
M: You are spending your time on a card game?
W: Not just any card game.It's one of the most strategic games. M: So I have heard. Don't you play with a partner?
W: Yeah! Four people play, two against the other two.
M: So, you try to play in cooperation with your partner?
W: Actually, the cards of one of the four players are turned face up. That player is called the dummy.
M: I wouldn't want to be called that. When you are the dummy, what do you do while the cards are being played?
W: Anything you want. Sit there and study, shuffle another deck, get snacks for everyone... I like to stand behind my partner and watch. That is very interesting.
M: You know, I've heard that bridge is habit-forming. You should be careful not to play so much that you don't get your studying done.
W: Don't worry about me. I only play cards on Thursday after dinner, and sometimes when they need a fourth player, ff you like, I could teach you.
M: Thanks, but I have a pretty heavy workload this semester. I already spend my evenings doing things I don't really know how to do yet.
W: I know you are busy, but sometimes you need to have a rest.
(23)
A.Studying with a partner.
B.Preparing snacks.
C.Playing cards.
D.Learning how to design bridges.
第4题
在雇员信息表关系EMP中,哪些属性是外键(foreign key)? ()
A.雇员号
B.雇员名
C.部门号
D.工资
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!