基于半连接操作的分布式查询的基本思想是将关系从一个站点传输到另一个站点之前减少该关系中（）的数量。
参考答案：与连接无关的数据
根据中文提示，用词组的适当形式填空。
1. Children often have ________ ________ (许多)fun in the school sports meet.
2. The teacher said “You can ________ ________(上交) your homework tomorrow.
3. The bridge is ________ ________ of(由……组成) the stones.
4. ________ ________ (最后), we hold a party to celebrate New Year!
5. There are many kinds of animals ________ ________ (处于危险中).
6. Yesterday my teacher ________ me ________(把……错当成) my twin brother.
7. The doctor always ________ ________（检查）his patients carefully.
以作业人员操纵减速器来控制车辆溜放速度的驼峰，属于（）驼峰。
A.非机械化
B.机械化
C.半自动化
D.自动化
