单项选择题

The years after 1812 were relatively unproductive because ______.

A．he felt good in his romantic relationships
B．he realized that his hearing was compromised
C．he felt inadequate to create more musical pieces
D．he was very low in spirits

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热门试题

单项选择题

Beethoven established himself as the greatest composer ______.

A．with his powerful middle-period works
B．when his first three piano concertos were finished
C．around 1802
D．around 1795

单项选择题

What could scientists do if Robert's theory proves to be true

A．They could drive the insects away.
B．They could keep the plants well-watered.
C．They could make the plants grow faster.
D．They could build devices to trap insects.