内隐学习是指一种无需意志努力的潜意识的学习。这种学习的特点在于人们潜意识地获得某种知识，而且无需意志努力就可以将这些知识提取出来，并应用于特定任务的操作中。根据上述定义，下列不属于内隐学习的是：

A.小张在高考前做了大量数学习题，因此在数学考试中获得高分 

B.小李经常看别人下象棋，时间一长，他也掌握了下象棋的方法 

C.儿童无需系统地学习语词和语法规则，不知不觉地就会说母语 

D.生长在京剧世家的孩子耳濡目染，很小就会唱京剧

While completing a project a project manager realizes be needs to decrease project costs. After researching his options, he comes up with the following choices. Which choice would DECREASE project costs ？（）

A．Change to component A from component B. Component A costs more to purchase but has a lower life cycle cost than B

B．Change task A to be completed by resource B instead of Resource C, Resource B is a more experienced worker

C．Move tasks B and H to occur concurrently, and take the risk of a 30% increase in the need for five more resources later

D．Remove a test from the project plan