【单选题】【消耗次数：1】
When a fire____ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.
①
broke off
②
broke out
③
broke down
④
broke up
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相关题目
【单选题】
22. When a fire ______ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.
①
broke off
②
broke out
③
broke down
④
broke up
【单选题】
A fire broke out at the school but the teacher were able to lead the ___________ children to safety.
①
frightened
②
frightening
③
frighten
④
fright
【单选题】
13. A fire broke out at the school but the teacher were able to lead the ___________ children to safety.
①
frightened
②
frightening
③
frighten
④
fright
【单选题】
The reason _____ he was late for the meeting is _____ his car broke down on the road.
①
why; that
②
why; because
③
that; that
④
for which; because
【单选题】
When Ann broke the dish she tried to put the ____ back together.
①
fragments
②
pieces
③
bits
④
slices
【单选题】
When Ann broke the dish she tried to put the _____back together.
①
fragments
②
pieces
③
bits
④
slices
【单选题】
The reason __he was absent from the meeting was _his car broke down on the way.
①
that; because
②
why; that
③
that; that
④
for; that
【单选题】
-I’m sorry I broke your mirror.-Oh, really? ____.
①
It’s OK with me
②
It doesnt matter
③
Don’t be sorry
④
I don’t care
随机题目
【单选题】
设有关系WORK（ENO，CNO，PAY），主码为（ENO，CNO）。按照实体完整性规则（ ）
①
A.只有ENO不能取空值
②
B.只有CNO不能取空值
③
C.只有PAY不能取空值
④
D.ENO与CNO都不能取空值
【单选题】
关系模型中，一个候选码（ ）。
①
A.可由多个任意属性组成
②
B.至多由一个属性组成
③
C.可由一个或多个其值能唯一标识该关系模式中任何元组的属性组成
④
D.必须由多个属性组成
【单选题】
数据库管理系统是（ ）
①
A.采用了数据库技术的计算机系统
②
B.包括DBA、计算机硬件及DB的系统
③
C.位于用户与OS之间的数据管理软件
④
D.包括OS在内的数据管理软件
【单选题】
有关系S(SNO, SNAME, SAGE)，C(CNO, CNAME)，SC(SNO, CNO, GRADE)。其中SNO是学生号，SNAME是学生姓名，SAGE是学生年龄， C＃是课程号，CNAME是课程名称。要查询选修“ACCESS”课的年龄不小于20的学生姓名，则SQL语句是： SELECTSNAME FROM S，C，SC WHERE子句。 这里的WHERE子句的内容是（ ）。
①
A.S.SNO = SC.SNO and C.CNO = SC.CNO and SAGE=20 and CNAME=‘ACCESS’
②
B. S.SNO = SC.SNO and C.CNO = SC.CNO and SAGE =20 and CNAME in ‘ACCESS’
③
C. SAGE in=20 and CNAME in ‘ACCESS’
④
D. SAGE=20 and CNAME=’ ACCESS’