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甲房地产开发公司拟投资开发一大型居住区，预计工程全部完工需要三年时间，目前市场对此类房地产的需求较旺，但由于周围正在规划或建设较多的住宅小区，预计在今后三年内该地区的住宅空置率会从目前的2%上升至10%左右。问：甲公司拟以其所拥有的该项目的部分土地向银行申请抵押贷款，以下判断中正确的是()。
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Which of the following is tree according to the last paragraph？
The blind can hear better than ordinary people.
Cell Phone Lets Your Secret Out
Your cell phone holds secrets about you. Besides the names and【51】 that you've programmed into it, traces of your DNA linger on the device, according to a new study.
DNA is genetic material that【52】 in every cell. Like your fingerprint, your DNA is unique to you【53】 you have an identical twin. Scientists today routinely analyze DNA in blood, saliva, or hair left【54】 at the scene of a crime. The results often help detectives identify【55】 and their victims. Your cell phone can reveal more about you【56】 you might think.
Method J. McFadden, a scientist at McMaster University in Hamilton, Ontario, heard about a crime in which the suspect bled onto a cell phone and later dropped the【57】. This made her wonder whether traces of DNA lingered on cell phones—even when no blood was involved.【58】she and colleague Margaret Wallace of the City University of New York analyzed the flip-open phones of 10 volunteers. They used swabs to collect【59】 traces of the users from two parts of the phone: the outside, where the user holds it, and the【60】 , which is placed at the user's ear.
The scientists scrubbed the phones using a solution made mostly【61】alcohol. The aim of washing was to remove all detectable traces of DNA. The owners got their phones【62】for another week. Then the researchers collected the phones and repeated the swabbing of each phone once more.
The scientists discovered DNA that【63】to the phone's speaker on each of the phones. Better samples were collected from the outside of each phone, but those swabs also picked up DNA that belonged to other people who had apparently also handled the phone.【64】, DNA showed up even in swabs that were taken immediately after the phones were scrubbed. That suggests that washing won't remove all traces of evidence from a criminal's device. So cell phones can now be added to the【65】of clues that can clinch a crime-scene investigation.
(51)
Dr. Smith hopes to make this device smaller so as to help the blind navigate unfamiliar places.
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