对进场不做结构性能检验的预制构件，当无驻厂监督时，预制构件进场时应对其主要受力钢筋（）进行实体检验。

对进场不做结构性能检验的预制构件，当无驻厂监督时，预制构件进场时应对其主要受力钢筋（）进行实体检验。 A.数量 B.规格 C.间距 D.保护层厚度 E.混凝土强度 答案:ABCDE This question deals with "进场" (on-site entry) of "预制构件" (prefabricated components). It states that when there is no resident factory supervision and the structural performance inspection is not conducted, a specific type of inspection is required for the main reinforcing steel bars of the prefabricated components. The correct answer, "ABCDE," includes all the options listed, indicating that all of them are aspects that need to be examined during the on-site entry of prefabricated components in the absence of structural performance testing.