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【单选题】
下列关于原始凭证填制的表述说法错误的是
A.
对外开出的原始凭证必须加盖本单位公章
B.
凭证填写的手续必须完备，符合内部牵制要求
C.
原始凭证填写错误，可撕毁重新编制一张
D.
需要填一式数联的凭证，各联内容应当相同
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参考答案：
举一反三
【简答题】完形填空（共20小题；每小题1.5分，满分30分） In the past, man didn’t have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be 1 . Today things are 2 ,...
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【判断题】想象思维是一个事物想到另外真实存在的事物，而联想思维是人在头脑里对已储存的表象进行加工改造，构想出另外一个可能存在的事物
A.
正确
B.
错误
查看完整题目与答案
【单选题】关系模式Sailors(sid,lastname.firtname,age,ratring)其中lastname允许为空. 下面哪个语句能够查找出lastname属性值不为空的水手信息.
A.
SELECT * FROM SAILORS WHERE LASTNAME<>'NULL'
B.
SELECT * FROM SAILORS WHERE LASTNAME<>NULL
C.
SELECT * FROM SAILORS WHERE LASTNAME IS not NULL
D.
SELECT * FROM SAILORS WHERE LASTNAME not LIKE 'NULL'
E.
K
查看完整题目与答案
【单选题】关系模式Sailors(sid,sname,age,ratring)下面哪个语句能够查找出sname属性值至少为四个字符长,并且开始和结束字符都是B的水手信息.
A.
SELECT * FROM SAILORS WHERE sname like 'B%%_B'
B.
SELECT * FROM SAILORS WHERE sname like'B__%B'
C.
SELECT * FROM SAILORS WHERE sname like 'B??*B'
D.
SELECT * FROM SAILORS WHERE sname like'B**?B'
查看完整题目与答案
【单选题】垫圈的作用是：
A.
为螺母提供承载区域
B.
防松
C.
保护被联接件的表面以及调整零件或螺母的轴向位置
D.
A、 B 和C
查看完整题目与答案
【单选题】The man didn’t admit _________ anything at the store, when he was questioned by the police.
A.
to steal
B.
having stolen
C.
to have stolen
D.
having been stolen
查看完整题目与答案
【简答题】垫圈及弹簧垫圈的作用是什么？
查看完整题目与答案
【单选题】关系模式Sailors(sid,lastname.firtname,age,ratring)其中lastname允许为空. 下面哪个语句能够查找出lastname属性值不为空的水手信息.
A.
SELECT * FROM SAILORS WHERE LASTNAME<>'NULL'
B.
SELECT * FROM SAILORS WHERE LASTNAME<>NULL
C.
SELECT * FROM SAILORS WHERE LASTNAME IS not NULL
D.
SELECT * FROM SAILORS WHERE LASTNAME not LIKE 'NULL'
查看完整题目与答案
【单选题】The man didn’t want people know his age, ____ he did not want to have any gray hair.
A.
so
B.
however
C.
but
D.
otherwise
查看完整题目与答案
【单选题】The man didn’t want people to know his age, ____ he did not want to have any gray hair.
A.
so
B.
however
C.
but
D.
otherwise
查看完整题目与答案
相关题目：
【简答题】完形填空（共20小题；每小题1.5分，满分30分） In the past, man didn’t have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be 1 . Today things are 2 ,...
查看完整题目与答案
【判断题】想象思维是一个事物想到另外真实存在的事物，而联想思维是人在头脑里对已储存的表象进行加工改造，构想出另外一个可能存在的事物
A.
正确
B.
错误
查看完整题目与答案
【单选题】关系模式Sailors(sid,lastname.firtname,age,ratring)其中lastname允许为空. 下面哪个语句能够查找出lastname属性值不为空的水手信息.
A.
SELECT * FROM SAILORS WHERE LASTNAME<>'NULL'
B.
SELECT * FROM SAILORS WHERE LASTNAME<>NULL
C.
SELECT * FROM SAILORS WHERE LASTNAME IS not NULL
D.
SELECT * FROM SAILORS WHERE LASTNAME not LIKE 'NULL'
E.
K
查看完整题目与答案
【单选题】关系模式Sailors(sid,sname,age,ratring)下面哪个语句能够查找出sname属性值至少为四个字符长,并且开始和结束字符都是B的水手信息.
A.
SELECT * FROM SAILORS WHERE sname like 'B%%_B'
B.
SELECT * FROM SAILORS WHERE sname like'B__%B'
C.
SELECT * FROM SAILORS WHERE sname like 'B??*B'
D.
SELECT * FROM SAILORS WHERE sname like'B**?B'
查看完整题目与答案
【单选题】垫圈的作用是：
A.
为螺母提供承载区域
B.
防松
C.
保护被联接件的表面以及调整零件或螺母的轴向位置
D.
A、 B 和C
查看完整题目与答案
【单选题】The man didn’t admit _________ anything at the store, when he was questioned by the police.
A.
to steal
B.
having stolen
C.
to have stolen
D.
having been stolen
查看完整题目与答案
【简答题】垫圈及弹簧垫圈的作用是什么？
查看完整题目与答案
【单选题】关系模式Sailors(sid,lastname.firtname,age,ratring)其中lastname允许为空. 下面哪个语句能够查找出lastname属性值不为空的水手信息.
A.
SELECT * FROM SAILORS WHERE LASTNAME<>'NULL'
B.
SELECT * FROM SAILORS WHERE LASTNAME<>NULL
C.
SELECT * FROM SAILORS WHERE LASTNAME IS not NULL
D.
SELECT * FROM SAILORS WHERE LASTNAME not LIKE 'NULL'
查看完整题目与答案
【单选题】The man didn’t want people know his age, ____ he did not want to have any gray hair.
A.
so
B.
however
C.
but
D.
otherwise
查看完整题目与答案
【单选题】The man didn’t want people to know his age, ____ he did not want to have any gray hair.
A.
so
B.
however
C.
but
D.
otherwise
查看完整题目与答案
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