职称英语考试

【单选题】New Technique PromisesEarlierCancerDetection
A、new technique could revolutionize the early detection of cancer, giving sufferers a greater chance of beating the disease,American scientists sai
D、Researchers at the Massachusetts Institute of Technology have devised a novel method of 【51】 changes in the nucleus of cells in the earliest stages of the disease." More than 85 percent of all cancers originate in the epithelium (上皮) that lines the internal surfaces of organs 【52】 the body.Although these are treatable 【53】 they are diagnosed in one of the preventable stages, early body damages are almost 【54】 to detect," said scientist Fel
D、" We present a new optical-probe (光学探子) technique based on light-scattering spectroscopy (分光镜检查) that is able 【55】 detect precancerous and early cancerous cells in cell-rich epithelia," he added in a statement.The new technique relies on the fact 【56】 cell nuclei change in the early stages of cancer and the differences scatter light in a characteristic way. Until now the changes were only detectable 【57】 a biopsy (活检) was taken, the scientists sai
D、The new technique, 【58】 in the science journal Nature, can be used in conjunction with a routine cancer screening and surveillance technique which uses an endoscope (内窥镜) —a flexible optical probe 【59】 with cameras which is inserted into a cavity in the body—to check 【60】 cancers.The scientists said they 【61】 their new technique in four different organs during routine endoscopic cancer screening. The tip of the optical probe was brought into contact with the tissue to be tested and the scattering of light was recorded without the need for any tissue to be 【62】 , the scientists sai
D、" Our results show that light-scattering spectroscopy has the potential to detect pre-cancerous body damages and preinvasive cancers throughout the body. This technique should 【63】 improve the efficiency of cancer screening and surveillance," the scientists sai
D、Cancer is one of the biggest 【64】 in industrialized countries. 【65】 to figures from the World Health Organization, 10 million people were diagnosed with the disease worldwide in 1997 and six million die
D、
A、stopping
B．accelerating
C．delaying

D、detecting

网考网参考答案：D
网考网解析：
文章的第一句说到，“一种新技术可能使早期发现癌症发生根本的变化”，本句又说，“已经发明了一种新的方法”，显然这种新方法一定与如何早期发现癌症有关，四个选项中，B)项“加速”早期癌症的细胞核中的变化不符合逻辑；A)项“制止”和C)项“推迟”细胞核中的变化，在未弄清是否是癌症之前也是不可能的；故D)项“发现”细胞核中的变化才是最佳选择。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>