D

　　(2016·广西桂林一模)

　　Fruit powered digital clock

　　Fruit's not only good to eat, but it can also power this fruit digital clock. This clock uses the scientific principles on which modern

　　electrical storage batteries are based. The acid from the fruit helps transmit an electrical flow between two metal poles. The clock is priced at US DS|15. Connecting any fresh fruit or vegetable to the clock will make it work. The fruit is a clean, renewable source of electrical power.

　　USB vacuum

　　Do you know the dirtiest parts of your desk are probably your keyboard and mouse? Get a USB Mini Vacuum with retractable (可伸缩的) cable and suck away all that junk. The US­made product is priced at US DS|14.

　　SIM card reader

　　Making useful USB 2.0 multi­card readers even handier, this card can also read and write data to phone SIM cards. It comes with SIM editing software. Download your phonebook to your computer. If you lose your cellphone, you can store missing phone numbers in your new one. The US­made IMOMOS SIM card＋Multi Card Reader is priced at US DS|19 (114 yuan)．

　　Beer in your ear

　　The beer barrel (桶)­shaped Naf Naf Hyp MP3 is a musical box that's capable of playing radio, CDs and cassettes. It's got all the standard features of the typical clock­radio, but with the relaxing look of a big beer barrel. The Danish product is priced at about US DS|130 (780 yuan)．

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