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【单选题】
假没temp.dbf数据表中有两个字段“歌手号”和“最后得分”。下面程序段的功能是:将temp.dbf中歌手的“最后得分”填人“歌手”表对应歌手的“最后得分”字段中(假说已增加了该字段)。在下划线处应该填写的sqi。语句是( )。 USE歌手 DO WHILE.NOT.EOF() REPLACE歌手.最后得分wITH a[2] SKIP ENDⅨ) 查看材料
A.
SELECT*FROM temp WHERE temp.歌手号=歌手.歌手号TOARRAY a
B.
SEl,ECT*FROM temp WHERE temp.歌手号=歌手.歌手号INT()ARRAYa
C.
SELECT*FROM temp WHERE temp.歌手号=歌手.歌手号T()FILE a
D.
SEl,ECT*FROM temp WHERE temp.歌手号=歌手.歌手号INTO FILE a
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【简答题】促进铁吸收的因素主要包括蛋白质、肉类因子和维生素C。( )
【单选题】Which statement is true of the methane emissions of plants in the experiment?
A.
The lower the temperature,the higher the amount of methane emissions
B.
Living plants release less methane than dried plants at the same temperature
C.
When exposed to sunlight, plants stop releasing methane
D.
The higher the temperature,the greater the amount of methane emissions
【判断题】促进铁吸收的因素主要包括蛋白质肉类因子和维生素C。()
A.
正确
B.
错误
【单选题】关于二叉树顺序存储结构不正确的描述是?()。
A.
二叉树顺序存储结构是用一组连续的存储单元存放二叉树中的结点
B.
完全二叉树采用顺序存储结构,树结点在顺序存储单元中的下标能反映结点之间的逻辑关系
C.
满二叉树采用顺序存储结构,树结点在顺序存储单元中的下标不能反映结点之间的逻辑关系
D.
右单支树用顺序存储结构存储时会浪费大量的空间
【单选题】Which statement is false in term of the application of presentation structure?
A.
For research presentation, the frequently used structure is Introduction—Body—Conclusion .
B.
The Past --- Present --- Future mode is commonly applied in persuasive speech where you pitch a solution to a business problem.
C.
In a persuasive presentation, people use t he Complication—Resolution—Example mode as well.
D.
Pros-Cons-Recommendation mode is not suitable for persuasive presentation.
【单选题】Which statement doesn ’ t describe a positive parent-child relationship ?
A.
Being in the moment with your child
B.
Spending quality time with your child
C.
Creating a caring environment of trust and respect
D.
Fighting a lot with your kids
【单选题】Which statement is true of the methane emissions of plants in the experiment?
A.
The lower the temperature, the higher the amount of methane emissions.
B.
Living plants releas less methane than dried plants at the same temperature.
C.
When exposed to sunlight, plants stop releasing methane.
D.
The higher the temperature, the greater the amount of methane emissions.
【单选题】Which statement is true of the methane emissions 0f plants in the experment?
A.
The lower the temperature,the higher the amount 0f methane emissions.
B.
LiVing plants release less methane than dried plants at the same temperature.
C.
When exposed t0 sunlight,plants stop releasing methane.
D.
The higherthe temperature,the greater the amount of methane emissions.
【单选题】Which of the following statement is correct about the weather in T exas?
A.
T exas has di f ferent kinds of weather patterns as it is such a big state.
B.
Th e weathe r i n Alask a mus t b e mor e varie d tha n tha t i n T exas , sinc e i t cover s a la r ge r area.
C.
T exas has the coldest place in winter in the US.
D.
T exas has the warmest place in summer in the US.
【简答题】二叉树的顺序存储结构是用_________________存储二叉树的数据元素。
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