职称英语考试

试题来源：2003年职称英语等级考试真题（理工类C级）
【单选题】

Singing Alarms Could Save the Blind
    If you cannot see, you may not be able to find your way out of a burning building – and that could be fatal. A company in Leeds could ____________ (51) all that with directional (定向的) sound alarms capable of guiding you to the exit.
    Sound Alert, a company run __________ (52) the University of Leeds, is installing the alarms in a residential home for ______________ (53) people in Sommerset and a resource center for the blind in Cambria. The alarms produce a _____ (54) range of frequencies that enable the brain to ________ (55) where the sound is coming from.
    Deborah Withington of Sound Alert says that the alarms use most of the frequencies that can be __________ (56) by humans. “It is a burst of white noise that people say sounds like static (静电噪音) on the radio,” she says. “Its life-saving potential is ______ (57).”
    She conducted an experiment in which people were filmed by thermal-imaging (热效应成像)cameras trying to find their _________ (58) out of a large smoke-filled room. It ________ (59) them nearly four minutes to find the door without a sound alarm, ________ (60) only 15 seconds with one.
    Withington studies how the brain ______ (61) sounds at the university. She says that the _________ (62) of a wide band of frequencies can be pinpointed (精确地确定) more easily than the source of a narrow band. Alarms ___________ (63) on the same concept have already been installed on emergency vehicles.
    The alarms will also include rising or falling frequencies to _________ (64) whether people should go up or down stairs. They were ______________ (65) with the aid of a large grant from British Nuclear Fuels.
    51 A change        B cure        C demand        D set
    52 A to         B along         C by         D with
    53 A slow         B deaf         C blind         D lame
    54 A close         B wide         C small         D high
    55 A form         B affect         C create         D determine
    56 A watched         B made         C learnt         D heard
    57 A unlikely         B uncertain         C great         D little
    58 A life         B way         C method         D skill
    59 A took         B spent         C used         D had
    60 A but         B even         C so         D if
    61 A processes         B produces         C takes         D refuses
    62 A feature         B quality         C diagram         D source
    63 A accepted         B based         C kept         D focused
    64 A describe         B demand         C consider         D indicate
    65 A developed         B bought         C discovered         D sent

试题出处：http://www.examtiku.com/shiti/415763628.html
网考网参考答案：A、C、C、B、D、D、C、B、A、A、A、D、B、D、D
网考网解析：进入考试题库查看解析
大数据分析：根据网考网与考试题库的统计分析，该试题：
40%的考友选择了A选项
22%的考友选择了B选项
30%的考友选择了C选项
8%的考友选择了D选项
考友解析与评论：
 · 同样的题比原先难了
 · 我做了好几遍答案都是A、C、C、B、D、D、C、B、A、A、A、D、B、D、D
 · 这题不解，原来选A、C、C、B、D、D、C、B、A、A、A、D、B、D、D，感觉没错啊