题目

Directions: Fill in each blank with a proper word chosen from the box. Each word can be used only once. Note that there is one word more than you need.College degrees still necessary?We’re often told that if we can’t graduate from university, we’re unlikely to land a good job. However, some big-name companies say that you don’t need a college degree to do well in life.According to a list released by job review platform Glassdoor in August, a total of 15 famous companies have 【1】 college degrees as a requirement for some of their jobs, including Apple, Google, IBM, and Starbucks.The设函数，则函数的递减区间是(　　)A．B．C．D．