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  3. Promising Results from Cancer Study A new experimental vaccine(疫苗)has shown promising results in the fight against lung canc

Promising Results from Cancer Study A new experimental vaccine(疫苗)has shown promising results in the fight against lung canc

admin2013-07-25  33
问题                     Promising Results from Cancer Study
    A new experimental vaccine(疫苗)has shown promising results in the fight against lung cancer. In a small Texas-based study, a vaccine developed by scientists at Baylor University Medical Centre in Dallas, USA, cured lung cancer in some patients and slowed the progress of the disease in others.
    Researchers have reported encouraging findings from this small study. Forty-three patients suffering from lung cancer were involved in these trials. Ten of these patients were in the early stages and thirty-three in the advanced stages of the disease. They were injected with the vaccine every two weeks for three months, and were carefully monitored for three years. In three of the patients in the advanced stages of cancer, the disease disappeared and in the others, it did not spread for five to twenty-four months. However, no great difference was seen in the patients in the early stages of the illness.
    This new vaccine uses the patient’s own immune system. It is made specifically for each patient and is injected into the arm or leg. It stimulates(刺激)the body’s immune system, which then recognizes that the cancer cells are harmful, and attacks and destroys them.
    The vaccine could be effective against other forms of cancer. It offers great hope for the treatment of cancer in general, although further studies are needed before such treatment can be widely used.
Patients in the early stages of the disease recovered more quickly in the trial.
选项 A、Right
B、Wrong
C、Not mentioned
答案B
解析 题意：在试验中，处于疾病早期的患者恢复得更快。关键词是the early stages和recovered。依据此关键词，可在文中第二段最后两句找到相关叙述：“In three of the patients in the advanced stages of cancer，the disease disappeared and in the others，it did not spread for five to twenty—four months．However，no great difference was seen in the patients in the early stages of the illness．”(晚期患者中有三名患者的疾病消失，其他患者的病情在5到24个月内没有扩散。然而，处于疾病早期的患者没有出现任何不同。)可见这种疫苗对晚期患者的效果比较明显，故此题说法为“错误”的。
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