Fill in the blanks by selecting suitable words from the word bank. You may not use any of the words more than once.There have been increased demands for higher education to provide students with better courses and more opportunities. To deal with this(1)issue, colleges and universities are turning to the Internet for quick(2)to its rich educational resources. Now the Internet has been accepted as the(3)technology to many other methods in colleges and universities. Many teachers now routinely(4)their teaching materials online. A growing number of schools offer at least some(5)courses over the Internet.There are two different models of making use of the Internet for higher education. The first model(6)to improve existing courses by using the Internet. This model provides high-speed Internet(7)to all students, faculty, and staff. While this model uses the Internet, it doesn't(8)many changes, and it keeps most existing institutional structures unchanged.A different, more revolutionary model regards the Internet as(9)to an important change in higher education, for it is believed that the Internet can(10)teacher-centered instruction into student-centered learning. This, as a result, will bring about basic change to our university education.
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Parents and teenagers have different or even opposite things to worry about. For example, while a mother might have a hard time understanding why her teenagers' room is always a(n)(1)of dirty stuff, the teenagers are more worried about their next exams and may think it is(2)for their mother to insist on keeping a clean room. It is therefore important for you to(3) the differences and learn to communicate with your teenagers properly.(4), your teenagers may say nothing and shut you out of their personal lives. Their refusal to talk with you may even create (5) stress in your life.Learning effective ways to communicate can (6)the situation of a difficult relationship, (7)the stress of your life, and lead to a friendly relationship with your teenagers. First, you should learn to discuss serious problems in daily conversations. So, important topics, such as driving a vehicle and building a(n) (8)relationship, could be dealt with through daily conversations.Second, learn to be an active listener. Many parents are so (9) with their work that they could hardly take some time for their (10) children. Spend your time listening carefully to what your children like to talk about, and make sure your children feel they are being taken seriously. This will increase the chances of good communication.
精馏塔理论板数NT是通过如下( )确定的。
A. 汽液平衡数据
B. 原料液组成
C. 进料热状况
D. 操作回流比
E. 塔顶馏出液组成
F. 塔底釜液组成
单板效率的表现形式有( )。
A. 气相默弗里单板效率
B. 液相默弗里单板效率
理论塔板是指离开该块塔板的( )相互成平衡,而且塔板上的液相组成也可视为均匀的。
A. 气固两相;
B. 液固两相;
C. 气液固三相;
D. 气液两相。