| For years, doctors have given cancer
patients three main treatments: surgery, radiation and chemotherapy. Now
researchers are developing a fourth weapon: the patient’s own immune
system. New vaccines and drugs can stimulate the production of an army of cells
and antibodies that kill cancer cells. Drug-vaccine therapy may be lifesaver for Deerfield man. Few people survive advanced melanoma, but immune therapy is giving Deerfield resident Douglas Parker a fighting chance. The 46-year-old salesman noticed a mole on his chest three and a half years ago that was found to be cancerous. Doctors removed the mole but didn’t get all of the cancer. The cancer spread to other parts of his body, including his liver, where a tumor grew as large as a baseball. Parker took interferon and interleukin-2 to boost his immune system’s ability to fight the cancer. The A. replacing cancerous cells B. boosting the immune system C. killing cancer cells directly D. quickening the reproduction of cells [单项选择]The doctors have (abandoned) the hope to rescue the old man.
A. left B. given up C. turned down D. refused [填空题]Many professional medical doctors have recognized the value of psychological treatment and therefore they willingly______.
[填空题]Doctors have been instrumental in improving living standards in Western society.
[单项选择]For years, doctors have given cancer patients three main treatments: surgery, radiation and chemotherapy. Now researchers are developing a fourth weapon: the patient’s own immune system. New vaccines and drugs can stimulate the production of an army of cells and antibodies that kill cancer cells.
Drug-vaccine therapy may lie lifesaver for Deerfield man. Few people survive advanced melanoma, but immune therapy is giving Deerfield resident Douglas Parker a fighting chance. The 46-year-old salesman noticed a mole on his chest three and a half years ago that was found to be cancerous. Doctors removed the mole but didn’t get all of the cancer. The cancer spread to other parts of his body, including his liver, where a tumor grew as large as a baseball. Parker took interferon and interleukin-2 to boost his immune system’s ability to fight the cancer. The tumor shrank but didn’t disappear. In August, 1997, surgeons removed it, along with two thirds of his liver. Last January, doctors disc A. replacing cancerous cells B. boosting the immune system C. killing cancer cells directly D. quickening the reproduction of cells [单项选择]The doctors have abandoned the hope to rescue the old man.
A. left B. given up C. turned down D. refused [单项选择]Doctors have known for a long time that extremely loud noises can cause hearing damage or loss. The noise can be the sound of a jet airplane or machines in factories or loud music or other common sounds found at home and at work.
A person only needs to hear the noise for little more than one second to be affected. An American scientist has found that using aspirin can increase the temporary hearing loss or damage from loud noise. He did an experiment, using a number of male students at a university who all had normal hearing. He gave them different amounts of aspirin for different periods of time, then he tested their hearing ability. He found that students who were given four grams of aspirin a day for two days suffered much greater temporary hearing loss than those who did not use aspirin. The hearing loss was about twice as great. The scientist said millions of persons in the United States use much larger amounts of aspirin than were used in the study. He said these p A. how much aspirin would affect a person’s hearing B. how much aspirin should be given in the treatment of the patients with hearing damage from loud noises C. whether the person who had hearing damage should use aspirin D. whether aspirin would increase the temporary hearing damage from loud noise 我来回答: 提交
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