[单选题]从1952年秋开始，我国对高等院校进行大规模调整，新设了北京地质学院、北京钢铁工业学院、成都工学院、昆明工学院等学院，院校数量从201所减少到181所。这表明，当时调整的主要目的在于()。
A.彻底改变原有的不合理区域布局
B.有计划地开始整顿和改造旧教育
C.实现教育为工农服务
D.为大规模经济建设培养专门人才

W: It’s well-known science fiction plot to freeze a body and bring it back to life years later.
However, this may no longer be so far from the truth. Joining us from our Cardiff studio is Professor Andrew Morgan, who’s been doing some research into this subject. Professor Morgan.
M: Yes, well, I’ve been looking into the ability of certain animals to freeze themselves for a certain amount of time, and then to come back to life when the circumstances around them change. And, what I’ve been working on over the past two years is the particular process that enables them to do this.
W: What have you actually discovered
M: I think it’s a particular chemical in the animals’ bodies which begins to work under certain circumstances. And I’m now experimenting with this chemical to see if I can get other animals that wouldn’t normally be able to freeze themselves to be able to do this.
W: Have you had any
A. A certain chemical in their bodies.
B. The change of certain circumstances around them.
C. A certain temperature.
D. A certain season in the year.

In the current immigration wave, something markedly different is happening here in the middle of the great American "melting pot." (46) There is a sense that, especially as immigrant populations reach a critical mass in many communities, it is no longer the melting pot that is transforming them, but they who are transforming American society.
American culture remains a powerful force—for better or worse—that influences people both here and around the world in countless ways. But several factors have combined in recent years to allow immigrants to resist, if they choose, the Americanization that had once been considered irresistible.
In fact, the very concept of assimilation is being called into question as never before. (47) Some sociologists argue that the melting pot often means little more than "Anglo conformity" and that assimilation is not always a positive experience—for either society or the immigrants themsel