A.To tell what high tech and state of the art are.B.To tell how high tech and state of the art have developed.C.To give examples of high tech.D.To describe the modern technology.
A.To tell what "high tech" and "state of the art" are.
B.To tell how "high tech" and "state of the art" have developed.
C.To give examples of high tech.
D.To describe the modern technology.