下图为“M河流域河流分布图”及其“干流河床对应的剖面图”，读图回答16～18题。16．计划开发河流的水能，修建大坝的最理想位置是( ) A．a处 B．b
下图是一组世界区域地图，图中甲、乙两地发展种植业的主要制约因素分别是（ ） A. 土壤、水 B. 光热、降水 C. 风向、地势 D. 地形、
This year I decided to do something to regain my good name as a kindly uncle. My 41 , Tony , had never forgiven me for the dictionary I had bought him as a birthday present last year. His 4
Put the flowers in warm rooms to ________them ________the freezing cold. A．stop；from B．keep；from C．protect；from D．rescue；off
As John Lennon once said，life is_____ happens to you while you are busy making other plans. A. which B. that C. what D. where
Any student cheats in the exam will never it. A. who; get along with B. that; get back with C. who; get away with D. which; get in with
报纸与历史密切相关，历史所记载的重大事件，往往就是当时报纸上的重大新闻。与下图报纸头版头条新闻直接相关的重大事件是 A．辽沈战役
The income of skilled workers went up. ________, unskilled workers saw their earnings fall. A. Anyhow B. Therefore C. Meanwhile D. Otherwis
