Who's calling? <a href="http://myavangmusic.com/can-you-reverse-hearing-loss-in-dogs-e8cd.pdf">reverse hearing loss book reviews</a>  Apple Inc this week said its revenue in GreaterChina, which also includes Hong Kong and Taiwan, slumped 43percent to $4.65 billion from the previous quarter. That wasalso 14 percent lower from the year-ago quarter. Sales wereweighed down by a sharp drop in revenues from Hong Kong. "It'snot totally clear why that occurred," Cook said on a conferencecall with analysts.