2. 外语
  3. Contact your doctor if the cough persists.

Contact your doctor if the cough persists.

admin2009-06-15  45
问题 Contact your doctor if the cough persists.
选项 A、insists
B、perseveres
C、continues
D、resists
答案C
解析 persist：坚持；持续。continue：持续。She continued the work day after day．insist：坚持；坚持主张。My family insisted that I should not give in，but stay and fight．persevere：坚持。Despite the failure of his early experiments，the scientist persevered in his research．resist：反抗；顶住。The nation was able to resist the invasion. insist和persist在意义上并不完全相同。insist缺乏“持续”这个义项。persevere也缺少“持续”这个义项。因此，正确的选择是 continue。“坚持”与“持续”在意义上似乎很接近，但在语义上的差别是很明显的。“坚持”至少要求有生命的东西作主语，但“持续”就没有这个要求。
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