①实现了产业结构的优化升级                    ②对外开放上升到一个新层次

③企业依靠技术提升国际竞争力                ④提高利用外资的综合优势和效益

读短文，并判断正误。

                                                                       Summer Holidays(暑假) in England

    With July coming, the summer holidays begin. Boys and girls will have 60 days to rest. The weather is good. Parents will take their children to the seaside(海边) for the holidays. The children like the sand(沙子), the sun, the cool wind and the water. Certainly there are lots of things to see, good things to eat, and exciting things to do. They can play ball games. They can go on field trips, too. They study real things on the field trips. What good holidays!