皮皮学，免费搜题
登录
搜题
【简答题】
Watch the video again adn fill in the blanks with what you heard. Ball Goes on a Picnic It's a nice fall day. So today, Ball is going on a picnic. He 1 off the shelf. He bounces 2 the stairs. Then, Ball bounces out the door. He bounces 3 the car, He sits 4 his friend, David. After a nice ride, Ball bounces 5 the car. He is in the park. He bounces 6 the grass. He rolls between two 7 . He bounces into a hole. Now, he bounces next to the barbecue. Oh, no! Be careful!" Ball has fun bouncing 8 the park. It is getting late. The picnic is over. Ball is very tired. Ball falls asleep.
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】《水质pH值的测定玻璃电极法》（GB／T6920—1986）适用于饮用水、地表水及（）pH值的测定。
【简答题】《水质pH值的测定玻璃电极法》（GB/T 6920-1986）适用与饮用水、地表水及（）pH值的测定。
【简答题】虚拟现实技术的特性有_____________、______________、_______________
【简答题】虚拟现实技术的特性有_____、_____和_____。
【简答题】《水质PH值的测定玻璃电极法》（GB/T6920－1986）适用于饮用水，地表水及（）PH值的测定。
【简答题】The common Chinese greeting of “Ni chi le ma?” may soon be replaced by a new greeting: “Have you cleaned your plate?” Over the Spring Festival holiday there was a big effort to get people to curb thei...