_______ in the 1800s and first mass-prod
题型:选择题
问题:
_______ in the 1800s and first mass-produced in Germany, the harmonica(口琴) was designed to play simple folk tunes.
A.Being invented
B.Inventing
C.Invented
D.Having invented
_______ in the 1800s and first mass-produced in Germany, the harmonica(口琴) was designed to play simple folk tunes.
A.Being invented
B.Inventing
C.Invented
D.Having invented