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【判断题】
人在进食时,食物的形状、颜色、气味,以及进食的环境,都能形成唾液分泌的条件反射。
A.
正确
B.
错误
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参考答案:
举一反三
【多选题】美国联邦最高法院的门上有哪三位人物?
A.
摩西
B.
孔子
C.
梭伦
D.
但丁
查看完整题目与答案
【单选题】( )应具备各类站线、站台、雨棚、天桥、地道、照明、给排水,棚栏( 围墙 ),跨线路的平过道和垃圾处理等设施。管规207
A.
站房
B.
站场
C.
站前广场
D.
平过道
查看完整题目与答案
【单选题】在 Oracle 中,下面那条语句当 Comm 字段为空时显示 0 ,不为空时显示 Comm 的值()
A.
select ename, NVL(comm,0) from emp;
B.
select ename, NULL(comm,0) from emp;
C.
select ename, NULLIF(comm,0) from emp;
D.
select ename, NVL2(comm,0) from emp;
查看完整题目与答案
【单选题】在Oracle中,下面哪条语句当COMM字段为空时显示0,不为空时显示COMM的值( )
A.
SELECT ename,NVL(comm,0) FROM emp;
B.
SELECT ename,NULL(comm,0) FROM emp
C.
SELECT ename,NULLIF(comm,0) FROM emp;
D.
SELECT ename,DECODE(comm,NULL,0) FROM emp;
查看完整题目与答案
【单选题】In inter-gender communication when responding to hearing of someone else’s problems, ________
A.
Men tend to respond to hearing of someone else’s problems by telling of their own problems.
B.
Women tend to show that they understand the situation the other person is in and that they feel sympathetic.
C.
Women are more likely to take it as a request for help.
D.
Women tend to offer a solution, however pointless the solution might be.
查看完整题目与答案
【单选题】()应具备各类站线,站台、雨棚、天桥、地道、照明、给排水,栅栏(围墙),跨线路的平过道和垃圾处理等设施。
A.
站房
B.
站场
C.
站前广场
D.
平过道
查看完整题目与答案
【单选题】函数【图片】的第二类间断点的个数为( )
A.
0
B.
1
C.
2
D.
3
查看完整题目与答案
【单选题】Gender is mostly a category of the noun and pronoun. In English, the gender distinctions are determined ______ in French, they are ______.
A.
grammatically arbitrary
B.
free determined by the biological gender
C.
arbitrarily fixed
D.
by the biological gender grammatical
查看完整题目与答案
【单选题】在Oracle中,下面哪条语句当COMM字段为空时显示0,不为空时显示COMM的值()。
A.
select ename,nvl(comm.,0)from emp
B.
select ename,null(comm.,0)from emp
C.
SELECT ename,NULLIF(comm,0)FROM emp
D.
SELECT ename,DECODE(comm.,NULL,0)FROM emp
查看完整题目与答案
【单选题】在Oracle中,下面哪条语句当COMM字段为空时显示0,不为空时显示COMM的值?
A.
select ename, nvl(comm,0) from emp;
B.
select ename, null(comm,0) from emp;
C.
select ename,nullif(comm,0)FROM emp;
D.
select ename,decode(comm,NULL,0)FROM emp;
查看完整题目与答案
相关题目:
【多选题】美国联邦最高法院的门上有哪三位人物?
A.
摩西
B.
孔子
C.
梭伦
D.
但丁
查看完整题目与答案
【单选题】( )应具备各类站线、站台、雨棚、天桥、地道、照明、给排水,棚栏( 围墙 ),跨线路的平过道和垃圾处理等设施。管规207
A.
站房
B.
站场
C.
站前广场
D.
平过道
查看完整题目与答案
【单选题】在 Oracle 中,下面那条语句当 Comm 字段为空时显示 0 ,不为空时显示 Comm 的值()
A.
select ename, NVL(comm,0) from emp;
B.
select ename, NULL(comm,0) from emp;
C.
select ename, NULLIF(comm,0) from emp;
D.
select ename, NVL2(comm,0) from emp;
查看完整题目与答案
【单选题】在Oracle中,下面哪条语句当COMM字段为空时显示0,不为空时显示COMM的值( )
A.
SELECT ename,NVL(comm,0) FROM emp;
B.
SELECT ename,NULL(comm,0) FROM emp
C.
SELECT ename,NULLIF(comm,0) FROM emp;
D.
SELECT ename,DECODE(comm,NULL,0) FROM emp;
查看完整题目与答案
【单选题】In inter-gender communication when responding to hearing of someone else’s problems, ________
A.
Men tend to respond to hearing of someone else’s problems by telling of their own problems.
B.
Women tend to show that they understand the situation the other person is in and that they feel sympathetic.
C.
Women are more likely to take it as a request for help.
D.
Women tend to offer a solution, however pointless the solution might be.
查看完整题目与答案
【单选题】()应具备各类站线,站台、雨棚、天桥、地道、照明、给排水,栅栏(围墙),跨线路的平过道和垃圾处理等设施。
A.
站房
B.
站场
C.
站前广场
D.
平过道
查看完整题目与答案
【单选题】函数【图片】的第二类间断点的个数为( )
A.
0
B.
1
C.
2
D.
3
查看完整题目与答案
【单选题】Gender is mostly a category of the noun and pronoun. In English, the gender distinctions are determined ______ in French, they are ______.
A.
grammatically arbitrary
B.
free determined by the biological gender
C.
arbitrarily fixed
D.
by the biological gender grammatical
查看完整题目与答案
【单选题】在Oracle中,下面哪条语句当COMM字段为空时显示0,不为空时显示COMM的值()。
A.
select ename,nvl(comm.,0)from emp
B.
select ename,null(comm.,0)from emp
C.
SELECT ename,NULLIF(comm,0)FROM emp
D.
SELECT ename,DECODE(comm.,NULL,0)FROM emp
查看完整题目与答案
【单选题】在Oracle中,下面哪条语句当COMM字段为空时显示0,不为空时显示COMM的值?
A.
select ename, nvl(comm,0) from emp;
B.
select ename, null(comm,0) from emp;
C.
select ename,nullif(comm,0)FROM emp;
D.
select ename,decode(comm,NULL,0)FROM emp;
查看完整题目与答案
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