【单选题】By definition, a discount store offers standard (merchandises) at prices (lower than those) of more conventional merchants. It is able to do so by accepting a lower profit margin, by purchasing (at hi...
【简答题】I'm sure that middle school students will benefit ________ taking exercise every day, which is ________ great benefit ________ their health. [ ] A . by; of; at B. from; of; to C. of; by; to D. by;...
【简答题】At higher CO2levels, certain types of plants, such as legumes, are expected to benefit more than others, and the nutritional quality of some crops will likely decline.