The ________ from the forest fire could be seen ten miles away.
A.smell
B.spark
C.steam
D.smoke
A.smell
B.spark
C.steam
D.smoke
第1题
A.in which
B.at which
C.in that
D.from which
第2题
A.f is a binary relationship from X to Y, but not a function from X to Y;
B.f is a function from X to Y, but it is not a full shot, nor is it a single shot;
C.f is a full shot from X to Y, but not a single shot;
D.f is a double shot from X to Y.
第3题
A.import turtle as t
B.from turtle import*
C.import turtle
D.import setup from turtle
E.from turtle
F.from turtle as t
第4题
A.confus
B...with
C.result...from
D.shar
E...with
F.F.keep ...from
第5题
A.T
B.F
C.NM
第6题
A.import turtle as t
B.from turtle import*
C.import turtle
D.import setup from turtle
E.from turtle
F.from turtle as t
第7题
A.A.put on
B.B.put down
C.C.put back
D.D.put off
第8题
His health______, my father retired from the business last year.
A. fails
B. was failed
C. failing
D. failed
第9题
对于教学数据库的三个基本表:S(Sno,Sname,Ssex),SC(Sno,Cno,Grade),C(Cno,Cname, Teacher),其中S为学生表,SC为学生选课表,C为课程表,则对于语句:检索至少选修LIU老师所授课课程中一门课程的女生姓名,SQL语句错误的是______。
A.SELECT Sname FROM S,SC,C WHERE S.Sno=SC.Sno AND SC.Cno=C.Cno AND Teacher=‘LIU’AND Ssex=‘F’
B.SELECT Sname FROM S WHERE Ssex=‘F’AND Sno IN (SELECT Sno FROM SC WHERE Cno IN(SELECT Cno FROM C WHERE Teacher=‘LIU’))
C.SELECT Sname FROM S WHERE Ssex=‘F’AND EXISTS (SELECT* FROM SC WHERE SC.Sno=S.Sno AND EXISTS (SELECT*
D.SELECT Sname FROM S WHERE Ssex=‘F’AND EXISTS(SELECT* FROM SC WHERE SC.Sno=S.Sno AND EXISTS (SELECT*
第10题
A.A.by then
B.B.by that time
C.C.by what time
D.D.by which time
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