[问答题] 什么是“耦合小、内聚大”原则，请简要说明。

下列曲线为预制桩静载试验曲线，其情况可能如下（） ["均匀土中的摩擦桩","嵌入坚实基岩的端承桩","孔底有淤泥的摩擦桩","孔底有虚土的摩擦桩"] 新经济的核心是（） ["创新","网络化","强化品牌","大规模定制","战略联盟","竞争更加激烈"] 在市场上都用购买价格而不是收益率进行报价。 从学习程度方面来说，学习重复的次数越多，就越不容易遗忘。当学习重复的次数达到能刚好完全背诵的时，对阻止遗忘的效果最好（）。 ["110%","150%","200%","200%以上"] You create a Web application. You need to turn on Tracing for a page that is not performing well. You must store the trace information in a database for reporting and trending. Which two actions should you perform? （） [" Add a TraceContextEventHandler to the Trace.TraceFinished event to add the trace records into the database."," Add a system.diagnostics section to the Web.config file. Then add a listener to the new section."," Use the System.Diagnostics.Trace object to connect to a database. Then insert the trace records."," In the Page_Load for the page, place the Trace.Write call into a SQL INSERT statement."] 什么是“耦合小、内聚大”原则，请简要说明。