下面这段代码的运行结果是()。 Dim MyStringBuilder As New StringBuilder("Hello World!") MyStringBuilder.Replace("!"c, "?"c) Console.WriteLine(MyStringBuilder) ["HelloWorld?c","HelloWorld?","HelloWorld!c","HelloWorld!"]
卷材防水屋面泛水构造处理要点有()。 ["高度≧250mm","转角做成圆弧或45°角","附加卷材增强层一层","做好卷材上端收头固定处理","泛水下部设分格缝"]
Which four are true regarding the Workspace Manager in Oracle9i? () ["Automatically versions all tables.","Automatically installed with Oracle9i.","Merges changes with parent rows or discard changes.","Provides mechanism to identify and resolve conflicts.","Allows for version enabling tables by use of a packages procedure."]
简述影响压力应对的主观因素。
恒星在主序带(Main Sequence)上时,核心进行核反应产生什么元素()。 ["氢","氦","碳","氧"]
数据仓库系统主要有()和()两个部分。