在神经症患者的心理状态中，哪种恐惧被认为是最难以察觉的？

根据弗洛伊德的理论，下列哪项行为最可能被视为对施虐本能的一种升华？

Considering the historical context of anthropological theories in the early 1900s, which of the following statements best reflects the rejection of the particularist theory by a number of anthropologists?

在C++中，以下哪个操作符用于比较两个字符串是否相等？

Choose the correct relative pronoun: 'Data security measures, ______ directly affect market valuation, require systematic management.'