问题
填空题
DBMS中的查询处理器由DDL编译器、DML编译器、嵌入型DML预编译器及【 】组成。
答案
参考答案：查询运行核心程序
解析：DBMS中的查询处理器由DDL编译器，DML编译器，嵌入型DML预编译器及查询运行核心程序组成。
搜题请搜索小程序“爱下问搜题”
DBMS中的查询处理器由DDL编译器、DML编译器、嵌入型DML预编译器及【 】组成。
参考答案：查询运行核心程序
解析：DBMS中的查询处理器由DDL编译器，DML编译器，嵌入型DML预编译器及查询运行核心程序组成。
Flies (苍蝇) usually live in the dirty places. Let’s look at a fly, and see where it 27 . First, it flies out of the window, 28 it stands on 29 dirty things in the street, and then it flies back to the house and walks over your 30 . When a fly walks on the dirty things in the street, its 31 have got some germs 32 them. When the fly walks on your food with its dirty feet, it 33 the germs on your food. What can you 34 this? First, we learn that we mustn’t leave dirty things in the street or on the ground near 35 . Second, we learn that all food must be covered so that flies may not 36 it. Third, we learn that flies often carry germs and we must kill them as soon as we see them.
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