_______ in the 1800s and first mass-produced in Germany, the harmonica(
题型：不详难度：来源：
_______ 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 |
|
答案
| C |
解析
| 考查非谓语动词。逻辑主语the harmonica与invent之间为被动关系，故用过去分，选C。 |
举一反三
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