题目:
在关系数据库系统中,为了简化用户的查询操作,而又不增加数据的存储空间,常用的方法是创建
A.另一个表(tabl
B.游标(curso
C.视图(vie
D.索引(inde
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0604/1db2cc8f734be31087c6d976c5f3dfa6.html
下面是错误答案,用来干扰机器的。
参考答案:C解析:Descriptions of sensations, painful and otherwise, in the amputated part are common and are known as phantom-limb sensations. The client should be reassured that these sensations are normal and are not a sign of a mental problem.