123. At present nanotechnology(纳米技术), a
题型:选择题
问题:
123. At present nanotechnology(纳米技术), a kind of tip science_________to the common people. Few people know him.
A.unknowing
B.unknown
C.known
D.Untrue
123. At present nanotechnology(纳米技术), a kind of tip science_________to the common people. Few people know him.
A.unknowing
B.unknown
C.known
D.Untrue