1. The prevailing wind is the wind direction most often observed during a given time period. Wind speed is the rate at which the air moves past a stationary object. A. motionless B. massive C. flexible D. noticeable 【答案】A 2. During the rainy season the Mississippi River may carry away hundreds of acres of valuable topsoil from one area and randomly deposit in another. A. successively B. indifferently C. wildly D. irregularly 【答案】D 3. In order to understand the concept of infinity, we must think in much broader terms than we are accustomed to. A. are used to B. are aware of C. are convinced of D. are devoted to 【答案】A 4. She displayed great expertise in bringing the horse under control and thus won the first prize in the race. A. expert B. experience 推荐资料热点关注
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