先化简，再求值：（x+1）²+x（x﹣2），其中x=$\sqrt{3}$．

下列各项中，不能作为判断是否为生物的是（  ）

读短文，根据文章内容判断句子正误。

    My school is very beautiful. It is in Dianjun District, Yichang City, Hubei Province. Do you know it? It is Dainjun Primary School. I like my school very much.

    There is a big playground in my school. We have P.E. class on the playground and we often play sports on it, too. Our teaching building has five floors. My classroom is on the fifth floor. It is big and clean. The computer rooms are on the third floor. There is a library on the second floor. There are many books in the library. I often read books here. There are some music rooms and art rooms in the teaching building, too.

    The teachers in my school are very kind. The students are very polite and smart. I am happy in my school.

    2018 年是改革开放 40 周年。回顾改革开放以来在吸引外商投资方面，我国一直处于世界前列，为我国经济发展起到了重要作用。近年来我国在吸引外资的各个方面也正在发生变化。

    近年来，外资在中国的投向表现出第二产业特别是制造业过重，第一、第三产业过轻的局面。据统计，我国三个产业累计合同利用外资比重分别是 1.96%，68.69%，和 29.36%，其中制造业就占据第二产业引资总量的 90%左右。从外资利用的地区分布来看，我国东、中、西部地区无论在外资使用的数量，还是外资使用的效益和规模方面，都存在着较大的差距，我国吸引来的外资多投向于东部沿海经济发达的地区。

上述材料反映出我国利用外资存在什么突出问题？我国应如何应对？