Given: Which statement is true?() ["The equals method does NOT properly override the Object.equals method.","Compilation fails because the private attribute p.name cannot be accessed in line 5.","To work correctly with hash-based data structures,this class must also implement the hashCode method.","When adding Person objects to a java.util.Set collection,the equals method in line 4 will prevent duplicates."]
锚杆支护可起到¬下列哪些作用?() ["加固拱","组合梁","悬吊","封闭"]
根据《治安管理处罚法》的规定,下列说法正确的有()。 ["公安机关应当向被处罚人宣告治安管理处罚决定书,并当场交付被处罚人","公安机关无法当场向被处罚人宣告处罚决定书的,应当在二日内送达被处罚人","对决定给予行政拘留处罚的,公安机关应当及时通知被处罚人的家属","有被侵害人的,公安机关应当将决定书副本抄送被侵害人"]
句子表达客观现实和陈述主观意图这两个特点,总称为句子的()。
服务的从属、补充特征,服务的非定量性因素,这是指服务的() ["显性要素","隐性要素","物品要素","环境要素"]
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