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科研机构和大、专院校进口免税的科研和教学专用设备需按规定征收海关监管手续费。( )
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在实行计算机报关的口岸，专业报关和代理报关单位、自理报关单位或者报关员应当负责将报关单上申报的数据录入电子计算机，海关方予接受申报。( )
下列各种高血压，哪种最适合β受体阻滞剂治疗
Directions:In this part there are 4 passages followed by questions or unfinished statements, each with four suggested answers. Choose the one you think is the best answer. Mark your choice’ on the Answer Sheet by drawing with a pencil a short bar across the corresponding letter in the brackets.Passage OneTheme-park-hound bargain seekers would be wise to spend some time surfing online before they get in line at the parks this summer.A growing number of these attractions now allow customers to print e-tickets at home with large discounts off the gate price, in part to spur attendance that has declined in recent years.After boom times in the late 1990s, theme park attendance began to decrease, with an overall decline of about 400% over the past few years at North America’s 50 most-visited establishments, says James Zoltak, editor of Amusement Business."The boom was off the rose as we turned the comer into 2000, so there’s more discounting now," he says.Discounting isn’t new to an industry that has longer partnered with other commercial enterprises, such as soft drink companies, to offer deals. But e-ticketing adds a new opportunity that not only brings savings but convenience as well, since it allows visitors to avoid the line at the gate."If you can get in early before the lines fill up, you’re getting more for your money," says Robert Niles of the website Theme Park Insider. Why do more and more theme parks offer large discounts off the gate price ？（）
若循环单链表长度大于1，p为指向链表中某结点的指针，试编写一算法删除p结点的前驱结点。
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