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How to Avoid the Worst Cold-Weather Packing MistakesYes, you can definitely blame winter clothes for your overstuffed(塞得过满的)suitcase. After all, warm clothing takes up a lot more room than summer T-shirts and shorts. To make matters worse, you’ve got to pack for overheated restaurants and freezing outdoor conditions. 【1】 . Here are some winter-packing mistakes we learned the hard way, and tips you need.【2】Your shoes face a big challenge in the winter. They need to be: insulated, waterproof, and warm; provide great traction in case of ice; be able to withstand salt; and be c为实现区域教育均衡发展，我市计划对某县A、B两类薄弱学校全部进行改造．根据预算，共需资金1575万元．改造一所A类学校和两所B类学校共需资金230万元；改造两所A类学校和一所B类学校共需资金205万元．（1）改造一所A类学校和一所B类学校所需的资金分别是多少万元？（2）若该县的A类学校不超过5所，则B类学校至少有多少所？（3）我市计划今年对该县A、B两类学校共6所进行改造，改造资金由国家财政和地方财政共同承担．若今年国家财政拨付的改造资金不超过400万元；地方财政投入的改造资金不少于70万元，其中地方财政投入到A、B两类学校的改造资金分别为每所10万元和15万元．请你通过计算求出有几种改造方案？