填空题 Read and complete the following passage with the given words.render, obsolete, setbacks , scrapped , setup R&D has many challenges associated with it. Initial 1. ______ costs as well as continued investment is necessary to keep research work cutting edge and relevant. Not all companies may find it feasible to continue this expenditure. Furthermore,once a commitment to R&D is made, it may take many years for the actual product to reach the market and a number of years will be filled with no return on continued heavy investment Moreover, not all research that is undertaken yields results. Many ideas and solutions are 2. __________ midway and work has to start from the beginning. There is always the danger that a significant new invention or innovation will 3. ________ years of research 4. ________ and create 5. ________ in the industry with competitors becoming front runners for the customer's business