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【判断题】
运输产品开发和运输资源的配置已经转向以市场为主体,因此,运输计划在现代化运输大生产中已经不再重要,属被市场所淘汰的运输组织手段。
A.
正确
B.
错误
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参考答案：
举一反三
【单选题】He did poorly in his examination,______ how hard he had studied for them.
A.
considering
B.
to consider
C.
thinking
D.
regarding
查看完整题目与答案
【单选题】He did poorly in his examinations, ______ how hard he had studied for them.
A.
considering
B.
to consider
C.
thinking
D.
regarding
查看完整题目与答案
【单选题】He did poorly in his examinations, ______ how hard he had studied for them.
A.
considering
B.
to consider
C.
regarding
D.
to regard
查看完整题目与答案
【单选题】若x、i、j和k都是int型变量,则计算下面表达式后,x的值是( )。
A.
（i=4，j=16，k=32）
B.
4
C.
16
D.
32
E.
52
查看完整题目与答案
【单选题】He did poorly in his examination, ______ how hard he had studied for them.
A.
considering
B.
to consider
C.
regarding
D.
to regard
查看完整题目与答案
【单选题】在关系模式中，实现“关系中不允许出现相同的元组”的约束是（）约束。
A.
候选键
B.
主键
C.
键
D.
任一键
查看完整题目与答案
【单选题】在关系模式中,实现“关系中不允许出现相同的元组”的约束是( )。
A.
候选键
B.
主键
C.
键
D.
任一键
查看完整题目与答案
【简答题】若x，ij和k都是int型变量，则计算表达式x=(i=4,j=16，k=32)后，X的值为（ ）。 A)4 B)16 C)32 D)52
查看完整题目与答案
【单选题】若x,i,j和k都是int型变量,则执行下面表达式后X的值为()
A.
32
B.
4
C.
16
D.
52
查看完整题目与答案
【单选题】在关系模式中,实现“关系中不允许出现相同的元组”的约束是:
A.
候选键约束
B.
主键约束
C.
外键约束
D.
任意键约束
查看完整题目与答案
相关题目：
【单选题】He did poorly in his examination,______ how hard he had studied for them.
A.
considering
B.
to consider
C.
thinking
D.
regarding
查看完整题目与答案
【单选题】He did poorly in his examinations, ______ how hard he had studied for them.
A.
considering
B.
to consider
C.
thinking
D.
regarding
查看完整题目与答案
【单选题】He did poorly in his examinations, ______ how hard he had studied for them.
A.
considering
B.
to consider
C.
regarding
D.
to regard
查看完整题目与答案
【单选题】若x、i、j和k都是int型变量,则计算下面表达式后,x的值是( )。
A.
（i=4，j=16，k=32）
B.
4
C.
16
D.
32
E.
52
查看完整题目与答案
【单选题】He did poorly in his examination, ______ how hard he had studied for them.
A.
considering
B.
to consider
C.
regarding
D.
to regard
查看完整题目与答案
【单选题】在关系模式中，实现“关系中不允许出现相同的元组”的约束是（）约束。
A.
候选键
B.
主键
C.
键
D.
任一键
查看完整题目与答案
【单选题】在关系模式中,实现“关系中不允许出现相同的元组”的约束是( )。
A.
候选键
B.
主键
C.
键
D.
任一键
查看完整题目与答案
【简答题】若x，ij和k都是int型变量，则计算表达式x=(i=4,j=16，k=32)后，X的值为（ ）。 A)4 B)16 C)32 D)52
查看完整题目与答案
【单选题】若x,i,j和k都是int型变量,则执行下面表达式后X的值为()
A.
32
B.
4
C.
16
D.
52
查看完整题目与答案
【单选题】在关系模式中,实现“关系中不允许出现相同的元组”的约束是:
A.
候选键约束
B.
主键约束
C.
外键约束
D.
任意键约束
查看完整题目与答案
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