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Combination mode is sometimes called part-whole mode. It is more convenient to deal with problems like tree structure. Look at the diagram:In the near future, glacial melting has covered 98% of earth's landmass. Sharks have flourished and now dominate the planet, operating as one massive school led by a mutated alpha shark.儿女们长大了，老人苏世坤和相依相伴的老伴范淑贞历尽沧桑，在不尽的风雨中变老了。 　　作为力学研究院高级顾问的苏世坤，虽已年近七旬，却一天到晚忙忙活活。为这事，老伴和孩子们不止一次劝他“累了一辈子了，也该歇歇，享几年清福了！”但苏世坤却不这么认为，总是说，“人越老越不能闲着，不干事，人就闲坏了，越老越得有点事干，有事干了，才充实……，他还说，人老了，就像一台老机器一样，如果它每天都在运转，就不会报废，如果让它闲置在一边，不再运转了，恐怕用不了几个月，这台机器就会像一堆锈迹斑斑的废铁疙瘩，再也转不起来了……”。 　　眼下，五个儿女都已经长大了，陆陆续续成家立业，按理说，两个老人已经基本完成任务，该过几天安稳日子了，可说不清怎么回事，总是摁下葫芦，瓢起来，这些个儿女们几乎没有一天让老人省过心。 　　儿女们当中，可以说二女儿苏文静是最让两个老人操心的一个闺女了。 　　苏文静这闺女从小又机灵又皮实，可就是学习跟不上趟，几乎年年补考。就是这么一个孩子，却能从初一就和一个叫赵树彬的男同学开始谈恋爱，一几个小娃儿跪在矮几前翻捡东西。少年高哲（刘松仁 饰）的父母死于一栋工厂大厦的一次火灾，痛不欲生的他无意中得知原来此次火灾乃城中巨富赵经琛为了低价买下该栋大厦再进行改建的一个阴谋。高哲苦无证据诉诸法律无望后，决定自己代替警察惩治赵经琛。最终赵经琛在高哲的枪口下痛哭流涕，发誓改过，从此以后他果然成了一个乐善好施的大好人。高哲从此找到了自己人生的道路，那就是将恶人们都不义之财劫回来，捐赠给所有有需要的人。For the first-class qualification certificate of the fire safety assessment institution to be issued, the fire control institution of the provincial public security organ shall complete the examination within 20 days from the date of accepting the application, and submit the examination opinions and application materials to the fire department of the Ministry of Public Security. The Fire Department of the Ministry of Public Security shall complete the review within 10 days from the date of receiving the review opinions.At a 5G test point in Shenzhen Nanshan District Science Park, the park is covered by 5G and 4G networks at the same time, while 5G mobile phones have reached a download speed of more than 1G per second in a very short period of time.