【单选题】
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 yourDNA、linger(逗留) on the device, according to a new study.
DNA、is genetic(遗传的) material that (52) in every cell. Like your fingerprint, yourDNA、is unique to you (53) you have an identical twin. Scientists today routinely analyzeDNA、in blood, saliva(涎，唾液), 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.
Meghan 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 ofDNA、lingered on cell phones -- even when no blood was involveD、 (58) she and colleague Margaret Wallace of theCity University of New York analyzed the flip-open phones(翻盖手机) of 10 volunteers. They used swabs(药签) 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(用力擦洗；擦净) the phones using a solution made mostly (61) alcohol. The aim of washing was to remove all detectable traces ofDNA、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 discoveredDNA、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 upDNA、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(确定，决定) a crime-scene investigation.
A、Generally B、SurprisinglyC、DisappointedlyD、Shortly
网考网参考答案：B
网考网解析：
[解析] 最后一段的第一和第二句告诉我们手机经过清洗后仍然有微量DNA出现。所以这里要用surprisingly这个副词，表示令人惊讶。故选B。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>
Your cell phone holds secrets about you.Besides the names and (51) that you’ve programmed into it, traces of yourDNA、linger(逗留) on the device, according to a new study.
DNA、is genetic(遗传的) material that (52) in every cell. Like your fingerprint, yourDNA、is unique to you (53) you have an identical twin. Scientists today routinely analyzeDNA、in blood, saliva(涎，唾液), 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.
Meghan 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 ofDNA、lingered on cell phones -- even when no blood was involveD、 (58) she and colleague Margaret Wallace of theCity University of New York analyzed the flip-open phones(翻盖手机) of 10 volunteers. They used swabs(药签) 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(用力擦洗；擦净) the phones using a solution made mostly (61) alcohol. The aim of washing was to remove all detectable traces ofDNA、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 discoveredDNA、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 upDNA、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(确定，决定) a crime-scene investigation.
A、Generally B、SurprisinglyC、DisappointedlyD、Shortly
网考网参考答案：B
网考网解析：
[解析] 最后一段的第一和第二句告诉我们手机经过清洗后仍然有微量DNA出现。所以这里要用surprisingly这个副词，表示令人惊讶。故选B。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>
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