[填空题]Content words are changing all the time whereas ______ words are stable.

[单项选择]He came back late, （　） which time all the guests had already left.
A. after
B. by
C. at
D. during

[单项选择]He came back late,（） which time all the guests had already left.
A. after
B. by
C. at
D. during

[简答题]Title: Knowledge Economy Words: 250 Time: 40 minutes Outline: 1) Knowledge economy age is approaching us. 2) What is knowledge economy 3) Knowledge economy presents opportunities and challenges.

[单项选择]

Education is one of the key words of our time. A man, without an education, many of us believe, is an unfortunate victim of unfortunate circumstances deprived of one of the greatest twentieth-century opportunities. Convinced of the importance of education, modern states "invest" in institutions of learning to get back "interest" in the form of a large group of enlightened young men and women who are potential leaders. Education, with its cycles of instruction so carefully worked out, is punctuated by textbooks--those purchasable wells of wisdom--what would civilization be like without its benefits
So much is certain: that we would have doctors and preachers, lawyers and defendants, marriages and births; but our spiritual outlook would be different. We would lay less stress on "facts and figures" and more on a good memory, on applied psychology, and on the capacity of a man to get along with his fellow-citizens. If our educational system were
A. The Significance of Education
B. Educational Investment and Its Profit
C. Education and Modern Civilization
D. Education: A Comparison of Its Past and Its Present