Proper arrangement of classroom space is important to encouraging interaction. Most of us have noticed how important physical setting is to efficiency and comfort when we work. Today’s corporations hire human engineering specialists and spend a great deal of time and money to make sure that the physical environments of buildings are fit to the activities of their inhabitants.
Similarly, college classroom space should be designed to encourage the activity of critical thinking. We will move into the twenty-first century, but step into almost any college classroom and you will step back in time at least a hundred years. Desks are normally in straight rows, so students can clearly see the teacher but not all their classmates. The assumption behind such an arrangement is obvious: Everything important comes from the teacher.
With a little imagination and effort, unless desks are fixed to the floor, the teacher can correct this situation and create space that enc
A. New kind of desks and chairs should be made.
B. Many companies are trying to improve the working settings for their employees.
C. Classroom interaction between students is essential to the training of critical thinking.
D. A comfortable environment leads to higher working efficiency.
Without proper safeguards, every part of a network is vulnerable to a security breach or unauthorized activity from （1）, competitors, or even employees. Many of the organizations that manage their own （2） network security and use the Internet for more than just sending/receiving e-mails experience a network （3）— and more than half of these companies do not even know they were attacked. Smaller （4） are often complacent, having gained a false sense of security. They usually react to the last virus or the most recent defacing of their website. But they are trapped in a situation where they do not have the necessary time and（5）to spend on security.
（1）处应填（）。我来回答:
