expensive testing and adjustments to fit your ear．Thanks to Crystal Ear，the“sound solution”is now convenient．
Almost 90 percent of people with mild hearing loss，and millions more with just a little hearing drop-off(下降)，can be dramatically helped with Crystal Ear．More over, its superior design is energy-efficient，so batteries can last months．Crystal Ear is now available to help these people treat their hearing loss with a small hearing amplifier(放大器)．
36．Initially the writer did not want t0 buy a hearing aid because
A．it would make him look old． B．it would make him nervous．
C．it was too expensive． D．it was old-styled．
37．Which of the following is NOT true of Crystal Ear?
A．It is highly sensitive．B．It is powerful．
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