题型：填空题 Welcome to Nature Park !You will see the world’s smallest penguins （企鹅）coming from the ocean and crossing the beach（海滩） to their home in line . Remember that they are wild（野生的） . You are visitors to their home .Things to remember :The Penguins Parade （企鹅列队）will last fifty minutes .Wear warmer clothes for you will watch the Penguins Parade on the beach .It’s better to get to the beach at least 15 minutes before the Penguins Parade begin .Protecting the penguins :You can’t take photos during the Parade . Put your camera in your bag before you walk down the beach . You can buy photos in the gift shops in our park.You can’t smoke anywhere . It’s not good for the environment .Don’t touch the penguins because they are wild animals .小题1:The Penguins Parade is ____________________ .A．looking for foodB．going back homeC．going for a showD．leaving for the beach小题2:You can see ___________________ in the park .A．the smallest penguinsB．the biggest penguinsC．the penguins dancingD．the penguins swimming under the water小题3:The Penguin Parade lasts ___________________ minutes .A．15B．50C．55D．60小题4:During the visit , people __________________ .A．can take photos of the penguinsB．can touch the penguinsC．can smokeD．had better wear warmer clothes小题5:Which of the following is Wrong in the passage ?A．It’s really cold on the beach .B．You can get down to the beach 15 minutes before the Parade begins .C．There’s no gift shop in the park .D．The penguins go home in line . 查看答案
题型：填空题 已知二次函数y=-x2+4x。（1）用配方法把该函数化为y=a（x-h）2+k（其中a、h、k都是常数且a≠0）的形式，并指出函数图象的对称轴和顶点坐标；（2）函数图象与x轴的交点坐标。 查看答案