inthe1800sandfirstmassproduced

_______ 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

登录免费查看答案和解析

相关试题

-Could you tell me the way to the railway station?
-__________.

A．Sure	B．If you like
C．If possible	D．Never mind

收藏答案/解析

He seems to be giving the impression that he didn't enjoy himself in Paris. __________，he had a wonderful time.

A．Above all	B．What's more
C．As a result	D．On the contrary

收藏答案/解析

Although Jane agrees with me on most points, there was one on which she was unwilling to __________.

A．give away	B．give in
C．give out	D．give off

收藏答案/解析

The situation begins to __________ a new aspect.

A．take in	B．take up
C．take on	D．take off

收藏答案/解析

To prevent the river from __________ again, the government ordered that the factory stop running.

A．polluting	B．polluted
C．having polluted	D．being polluted

收藏答案/解析