【单选题】【消耗次数：1】
When Ann broke the dish she tried to put the ____ back together.
①
fragments
②
pieces
③
bits
④
slices
参考答案：
复制
纠错
相关题目
【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 she saw the clouds, she went back to the house to
____ her umbrella.
①
bring
②
fetch
③
take
④
carry
【单选题】
When the girl heard the news, she could do nothing but ______ back home.
①
going
②
went
③
to go
④
go
【单选题】
My brother can take his car apart and put it back together again. I certainly wish he______ me how.
①
would teach
②
has taught
③
will teach
④
teaches
【单选题】
8.The girl was dancing about excitedly when suddenly she stood_______ and put on a horrified look.
①
silent
②
still
③
quiet
④
calm
【单选题】
While _______ the sun, the satellite has sent more than four billion bits of information back to earth.
①
having orbited
②
being orbited
③
having been orbited
④
orbiting
【单选题】
_____ for the fact that she broke her leg, she might have passed the exam.
①
Had it not been
②
Hadnt itbeen
③
Was it not
④
Were it not
【单选题】
Jane tried to ____ the doorman with money, but she
failed.
①
bribe
②
corrupt
③
award
④
endow
【单选题】
Jane tried to _____the doorman with money, but she failed.
①
bribe
②
corrupt
③
award
④
endow
随机题目
【单选题】
现 有 关 系 模 式 ： MP(empno,ename,mgr,sal,workday) DEPT(deptno,dname,loc)在以下视图中，不可能更新的视图为( )。
①
A．视图 V1，由 2014 年以后参加工作的雇员组成
②
B．视图 V2，由部门号和各部门的平均工资组成
③
C．视图 V3，由雇员姓名和其领导者姓名组成
④
D．视图 V4，由薪金超出所有雇员平均薪金以上的雇员组成。
【单选题】
修改学生表的结构时要删除“家庭地址”属性用的命令是（ ）。
①
A．UPDATE TABLE 学生 DELETE COLUMN ‘家庭地址’
②
B．UPDATE TABLE 学生 DROP COLUMN ‘家庭地址’
③
C．ALTER TABLE 学生 DELETE COLUMN ‘家庭地址’
④
D．ALTER TABLE 学生 DROP COLUMN ‘家庭地址’
【单选题】
下列不属于查询优化一般准则的是( )。
①
A．在执行连接前对关系进行适当的预处理
②
B．尽量避免投影和选择同时做
③
C．把某些选择同它前面要执行的笛卡儿积结合为连接运算
④
D．选择运算应尽可能早做