阅读下面的句子,选择正确的关联词填空:他对文学充满热情,______ 他每天都会阅读名著,______ 他的文学素养日益丰富。 区块链毕设网qklbishe.com为您提供问题的解答 阅读下面的句子,选择正确的关联词填空:他对文学充满热情,______ 他每天都会阅读名著,______ 他的文学素养日益丰富。 承接区块链项目定制开发 微信:btc9767 QQ :1330797917 TELEGRAM: BTCOK9 承接区块链项目定制开发qklbishe.com区块链毕设代做网专注|以太坊fabric-计算机|java|毕业设计|代做平台-javagopython毕设 » 阅读下面的句子,选择正确的关联词填空:他对文学充满热情,______ 他每天都会阅读名著,______ 他的文学素养日益丰富。
qklbishe 农场主人有一群牛,他给每只牛都打了一个编号。这些牛按照编号的大小形成了一颗二叉搜索树。现在农场主人想知道编号第k大的牛是哪一只,你能帮他设计一个算法来实现这个功能吗? 区块链毕设网qklbishe.com为您提供问题的解答 农场主人有一群牛,他给每只牛...
qklbishe Energy independence. It has a nice ring to it. Doesn’t it? If you think so, you’re not alone, because energy independence has been the dream of American president for decades, and never more so than in the past few years, when the most recent oil price shock has been partly responsible for kicking off the great recession. "Energy independence" and its rhetorical (修辞的) companion “energy security” are, however, slippery concepts that are rarely though through. What is it we want independence from, exactly? Most people would probably say that they want to be independent from imported oil. But there are reasons that we buy all that old from elsewhere. The first reason is that we need it to keep our economy running. Yes, there is a trickle(涓涓细流)of biofuel(生物燃料)available, and more may become available, but most biofuels cause economic waste and environmental destruction. Second, Americans have basically decided that they don’t really want to produce all their own oil. They value the environmental quality they preserve over their oil imports from abroad. Vast areas of the United States are off-limits to oil exploration and production in the name of environmental protection. To what extent are Americans really willing to endure the environmental impacts of domestic energy production in order to cut back imports? Third, there are benefits to trade. It allows for economic efficiency, and when we buy things from places that have lower production costs than we do, we benefit. And although you don’t read about this much, the United States is also a large exporter of oil products, selling about 2 million barrels of petroleum products per day to about 90 countries. There is no question that the United States imports a great deal of energy and, in fact, relies on that steady flow to maintain its economy. When that flow is interrupted, we feel the pain in short supplies and higher prices, At the same time, we derive massive economic benefits when we buy the most affordable energy on the world market and when we engage in energy trade around the world. "Energy independence" and its r...
qklbishe 44.返回产品名称和与之相关的订单号 Products表为产品信息表含有字段prod_id产品id、prod_name产品名称 prod_id prod_name a0001 egg a0002 sockets a0013 coffee a0003 cola a0023 soda OrderItems表为订单信息表含有字段order_num订单号和产品id prod_id prod_id order_num a0001 a105 a0002 a1100 a0002 a200 a0013 a1121 a0003 a10 a0003 a19 a0003 a5 【问题】 使用 OUTER JOIN 联结 Products 表和 OrderItems 表,返回产品名称(prod_name)和与之相关的订单号(order_num)的列表,并按照产品名称升序排序。 【示例结果】 返回产品名称prod_name和订单号order_num prod_name order_num coffee a1121 cola a5 cola a19 cola a10 egg a105 sockets a200 sockets a1100 soda NULL 【示例解析】 返回产品和对应实际支付订单的订单号,但是无实际订单的产品soda也返回,最后根据产品名称升序排序。 区块链毕设网qklbishe.com为您提供问题的解答 44.返回产品名称和与之相关...