Consider a relation R ( A，B，C，D ) with the following dependencies：AB C, CD E, DE B.A candidate key of this relation is （）. A: AB B: ABC C: ABD D: ABE

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2022-06-05 问题

Consider a relation R ( A，B，C，D ) with the following dependencies：AB C, CD E, DE B.A candidate key of this relation is （）. A: AB B: ABC C: ABD D: ABE

2022-06-03 问题

如图，若DE∥BC，且DE:BC＝3:5，则AD:DB等于（）． A: 2:3 B: 3:2 C: 3:5 D: 5:3

2022-06-03 问题

将序列{ 2, 12, 16, 88, 5, 10, 34 }排序。若前2趟排序的结果如下：第1趟排序后：2, 12, 16, 10, 5, 34, 88 第2趟排序后：2, 5, 10, 12, 16, 34, 88 则可能的排序算法是：（）

将序列{ 2, 12, 16, 88, 5, 10, 34 }排序。若前2趟排序的结果如下：第1趟排序后：2, 12, 16, 10, 5, 34, 88 第2趟排序后：2, 5, 10, 12, 16, 34, 88 则可能的排序算法是：（）

2022-06-08 问题

如图，在直角△ABC中，∠C=90°，BD平分∠ABC，DE⊥AB于点E，若DE=5，则DC=______．

2022-06-06 问题

If Sarah hadn’t come to the cabin, （） A: Abe’s father wouldn’t have told him not to go to school B: Abe wouldn’t have helped his father on the farm C: Abe wouldn’t have had so much time to read D: Abe’s father wouldn’t have told him to stop reading

If Sarah hadn’t come to the cabin, （） A: Abe’s father wouldn’t have told him not to go to school B: Abe wouldn’t have helped his father on the farm C: Abe wouldn’t have had so much time to read D: Abe’s father wouldn’t have told him to stop reading

2021-04-14 问题

问：3、5、5、4、2、88、3上述七笔数据不适用何种集中趋势指标?

2021-04-14 问题

字符串”abe\M01”的长度为

2022-06-19 问题

下面不能正确对数组进行初始化的语句是（） A: int a[5] = {62, 74, 56, 88, 90, 100}; B: int a[ ] = {62, 74, 56, 88, 90, 100}; C: int a[5] = {62, 74, 0, 0, 0}; D: int a[5] = {62, 74};

2022-05-27 问题

2019年设赛项大项( )个 A: 5 B: 10 C: 88 D: 90

2021-04-14 问题

单冲压片机的主要部件有（ABE

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