确定施肥时期是根据肥料的最佳利用时期及需肥规律确定最佳施肥时期。
参考答案：错
一拖拉机0.45小时耕地0.072公顷，这种拖拉机平均每小时耕地______公顷，耕地1公顷需要______小时．
根据中文提示，写出单词的正确形式（5分。（每空限填一词）
小题1:Are you____________(能够） to play the piano？
小题2:Go ______ (穿过) the street and keep going, you will see the hotel on your right.
小题3:I often have a ____________(野餐）with my friends on Sundays in spring.
小题4:---Could you tell the _____ (道路) to the nearest hospital? ----Yes, of course.
小题5:Whose ____________(手套）are those?
