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单选题
According to the passage, what would happen to healthy cells within 48 hours of exposure to radio waves?
A
The number of healthy cells will keep declining as more and more of them die.
B
The number of healthy cells will initially drop before recovering rapidly.
C
The number of healthy cells will be on steady increase throughout the process.
D
The scientists have not yet arrived at any conclusion on this issue.
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解析：
事实细节的找寻和判断。根据上题解析可知，暴露在无线电波之下24小时，被杀死的白血病细胞比正常细胞数量多出20%。但录音中同时指出“longer exposure to the radio waves triggered genes in the surviving cancer cells to divide aggressively”，可知若接受超过24小时（48小时）的连续辐射后，残余癌细胞中的基因会大量繁殖。但对于健康细胞的影响，有关科学家表示“We don’t know what the effects would be on healthy human cells”，由此可知，选项D与录音原文相符。
事实细节的找寻和判断。根据上题解析可知，暴露在无线电波之下24小时，被杀死的白血病细胞比正常细胞数量多出20%。但录音中同时指出“longer exposure to the radio waves triggered genes in the surviving cancer cells to divide aggressively”，可知若接受超过24小时（48小时）的连续辐射后，残余癌细胞中的基因会大量繁殖。但对于健康细胞的影响，有关科学家表示“We don’t know what the effects would be on healthy human cells”，由此可知，选项D与录音原文相符。
更多 “单选题According to the passage, what would happen to healthy cells within 48 hours of exposure to radio waves?A The number of healthy cells will keep declining as more and more of them die.B The number of healthy cells will initially drop before recovering rapidly.C The number of healthy cells will be on steady increase throughout the process.D The scientists have not yet arrived at any conclusion on this issue.” 相关考题
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共用题干
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共用题干
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