题型:阅读理解 以下是某校的部分校规。请根据内容按四个不同场所归类,并将其序号填入下面相应的横线处。每一横线只填一个序号。1. You must not draw on the blackboard. 2. You must return the books in time.3. You must not step on the grass. 4. You must put back the books after you have read them.5. You must not talk to the driver when the bus is moving.6. You must clean the classroom every day.7. You must put away the balls after you have used them.8. You must not cut in line when you wait in line for the bus.Classroom___ ___Library___ ___School bus____ ____Playground___ ___ A B C D请你仿照以上校规,用英文为自己的学校制定一条合理的校规。E ___________________________________________________________________ 查看答案
题型:单项选择题 灌溉设计标准是反映灌区效益达到某一水平的一个重要技术指标,一般以()与()表示?A、灌溉设计保证率、抗旱天数。B、水文年型、降水量。C、设计灌溉用水量全部获得满足的年数、抗旱天数。D、水源来水量、灌区需水量。 查看答案