根据物质特征可将生态系统中的物质循环划分为: A．水分循环 B．气体型循环 C．营养 发布时间：2017-07-05 08:08 │ 来源：www.tikuol.com 题型：不定项选择 问题： 根据物质特征可将生态系统中的物质循环划分为:A．水分循环B．气体型循环C．营养型循环D．沉积型循环
题型：不定项选择 完形填空：根据短文内容选择最佳答案。 Paris has a beautiful name, the City of 1 ________ Do you know 2 ________ it means? Many beautiful buildings are lighted (被灯照亮) at 3 ________.The streets are very 4 ________ When you 5 ________ in Paris, you need not turn 6 ________ your headlights (汽车前灯) even very dark. Paris is full of light all day and all night. But it is not the 7 ________ reason (理由) for its beautiful name. For hundreds of years, Paris is the 8 ________ of science and art. Many scientists (科学家) and artists cometo 9 ________ here. For this reason also, people 10 ________ it the City of Lights. ( )1．A．Flowers ( )2．A．when ( )3．A．noon ( )4．A．noisy ( )5．A．live ( )6．A．down ( )7．A．only ( )8．A．centre ( )9．A．study ( )10．A．build B．Cars B．what B．evening B．bright B．walk B．out B．other B．school B．drive B．make C．Lights C．how C．night C．dark C．drive C．on C．another C．shop C．play C．call 查看答案
题型：不定项选择 _____ by the advances in technology, many farmers have set up wind farms on their land. [ ]A. Being encouraged B. Encouraging C. Encouraged D. Having encouraged 查看答案