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有关米非司酮抗早孕的说法，错误的是：
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探究学习案例，《怎样才能投得准》。高二某班篮球基本技术单元第四课时，张老师课前给学生发放了挂图和相关学习资料，让学生自主学习。准备活动后，张老师首先提出问题：“直接命中与棚板投篮的瞄准点应怎样选择”请同学们分组讨论，同学们结合挂图和资料热火朝天地讨论开来。讨论完成后，张老师就选择瞄准点、人与篮球适宜位置、距离对命中率的重要性与学生展开讨论，并进行了分析比较。接着，张老师又提出“篮球投篮怎样才能投得准”的问题，同时提出了要求，结合学生的知识储备，认真分析了抛物线、入篮角度与命中率的关系。分小组自主练习后，同学们围在一起展开了讨论。大家畅所欲言，就各种抛物线的优点与不足，哪种入篮角度更适合自己，谈了自己的感受。讨论结束后，张老师将全班分成4个小组进行投篮比赛，从同学们的雀跃声中，感受到了他们投篮命中率提高的喜悦。本节课上，同学们通过探究学习，愉快地完成了学习任务，每个人都有了新的收获。根据上述材料，结合你对探究学习的理解，回答以下问题： 谈谈在体育课堂教学中，探究学习的教学步骤。
可治疗促性腺不足所致闭经的是：
For some of Chicago’s best and hottest restaurants, the reservation process is frustrating: Customers struggle to get tables, while restaurateurs spend hours every day on the phone turning people away. The Internet has solved more important problems, but the new approach of selling advance restaurant tickets via a website opens up a smart alternative to the traditional reservation. You buy tickets to see a show, why not for sushi(寿司) The idea comes from Nick Kokonas and chef Grant Achatz, the partners responsible for two of the city’s most acclaimed restaurants, Alinea and Next. Having figured out that a ticket system is a better way to manage their extraordinary booking demand, Kokonas and Achatz are expanding on the idea with outside investors. Their new company, Tock, will introduce the ticket system. Kokonas embraced the concept because of the stupendous demand for tables at Alinea, one of the world’s best. As he explained in a blog post this year, 70 percent of diners want a Friday or Saturday table, requiring him to employ full-time help to answer the phone just to turn down most people. Yet Alinea still had a no-show rate of 8 percent. The advantages of a ticket system are obvious for the restaurateurs: planning and efficiency. The restaurants don’t waste money on unnecessary phone staff help or food that gets thrown out because everyone pre-paid and will show up. Kokonas makes a point, too, about bringing more transparency (透明度) to a tradition based on mistrust and mystery: Customers, who suspect they are being lied to about availability, make reservations they know they might not keep, while restaurateurs accept 8 p. m. reservations knowing the table won’t be ready until 8:45." Traditional restaurant reservations are based on two people lying to each other," Kokonas wrote. The ticketing-based system gives diners a better shot at competitive tables, because only serious customers will commit. Those efficiencies also could benefit diners: If everyone wants a Friday table, your tickets for a Tuesday night may well sell at a discount. The biggest hurdle is probably cultural. "The public expects a certain level of democracy in a restaurant they don’t really expect in other businesses," Tribune restaurant critic Phil Vettel told us. "In other businesses taking care of your best customer is common sense, but in a restaurant if you have people who arrive later and get seated first, the other people waiting don’t understand that." What can be inferred from the last paragraph
求函数f(x)=x3-3x2-24x+1的单调区间与极值点。
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