A．have been going up and down． B．have remained stable．
C．have increased． D．have fallen．Crystal Ear
One day a friend asked my．wife Jill if I wanted a hearing aid．“He certainly does．”replied Jill．After hearing about a remarkable new product．Jill finally got up the nerve to ask me if I'd ever thought about getting a hearing aid．“No way,”I said．“It would make me look 20 years older．”“No，no．”she replied．”This is entirely different．It’s Crystal Ear!”
Jill was right．Crystal Ear is different—not the old. Styled body worn over-the earaid，but all advanced personal sound system so small that it’s like contacts(隐形眼镜)for your ears．And Crystal Ear is super-sensitive and powerful．too．You will hear sounds your ears have been missing for years．Crystal Ear will
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