// 题目保证nums1的元素都在nums2中，无需额外判空
第二十九条 增值税法第二十四条第一款第七项所称托儿所、幼儿园，是指依据有关规定设立的取得托育或者学前教育资格的机构，其免征增值税的收入是指有关收费标准规定以内的保育费、保育教育费；养老机构，是指依据有关规定设立的为老年人提供集中住宿和照料护理服务的各类养老机构；残疾人服务机构，是指依据有关规定设立的专门为残疾人提供相关服务的机构。
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At least one American citizen was shot dead and another injured by Cuban officials intercepting a speedboat off its coast on Wednesday, a US official has said.
There are two main types of smoke alarm tech, says Raman Chagger, principal consultant at BRE, the Building Research Establishment. Ionisation-based systems use a tiny amount of radioactive material to charge, or ionise, particles in the air which flow between two small plates. Should smoke interrupt that flow of charged particles, the alarm goes off.