The book was written in 1946, ____ the education system has witnessed great changes.
举一反三
- 中国大学MOOC: The professor has written another book，________ of great importance to computer science.
- Over the past ten years, China has _____a series of great changes in its infrastructure and economy. A: witnessed B: found C: occurred D: taken
- Our country has （） great changes in the past several decades, which is, of course, the result of reform and opening to the outside world. A: proposed B: demanded C: made D: witnessed
- The Book of Changes said, “The great virtue of Heaven and Earth is _________.”
- The Book of Changes said, “The great virtue of _______ and _______ is creating life.”