【单选题】钢筋混凝土构件的抗力主要与下列哪项有关。
【判断题】In the UK , weather is a neutral topic of conversation, it's usually safe to use it to strike up a conversation.
【单选题】She tries to strike up a conversation to help out the strangers at their ____.
【多选题】在警综平台《情报线索系统》,采集情报线索信息时,下列哪些线索属于要采集线索种类。()