What is said about demand for tech workers? A.It has continued to declinE. B.It has been concentrated in 8 major areas. C.It has risen by 25 percent over the past five years. D.It has influenced the development of the top-tech cities.
A.It B. B.It C. C.It D. D.It
【参考答案】
C 解析：联系上下文我们可以看到文章第二段第二句说到“demand for tech workers has n......