增长极
参考答案：
区域经济中的增长极是指具有推动性的主导产业和创新行业及其关联产业在地理空间上的集聚而形成的经济中心。
The major problem with E-mail is that it is (71) easy to use that people can become (72) with messages (73) they can possibly answer in a day. In addition, mail boxes require some management to (74) messages or archive those that might be required later. Senders don’t always know about your E-mail backlog and often send (75) messages.
A．too many
B．redundant
C．long
D．trivial
结合中国美术史简述功能论？
