問題詳情

四、閱讀測驗【請在下列各題中選出最適當的答案】   Getting a red face after downing alcoholic beverages is not a sign of strong qi (energy flow) or good blood circulation.Rather, it is an indication that your body is not metabolizing alcohol efficiently.    This phenomenon, called “Asian flush syndrome,” is common among Asians of Chinese, Japanese and Korean descent,but is rare among Europeans and Africans. Approximately 36% of East Asians show such physiological responses todrinking alcohol. Symptoms range from facial flushing, nausea, headaches to tachycardia. Some individuals developflushes or blotches on the face, neck, shoulders, and in some cases, the entire body, after consuming alcoholic beverages.    Once alcohol gets into your system, your body starts metabolizing it into a compound called acetaldehyde. When yourbody isn’t able to break down the acetaldehyde, facial flushing occurs. This compound has a relaxing effect that causesblood vessels to expand, resulting in a blood pressure dip. But once the alcohol leaves your system, your body works torapidly raise your blood pressure back to its pre-drinking levels. The risk of high blood pressure increases in this group ofpeople because acetaldehyde isn’t efficiently removed from the body. Researchers collected data from over 1,700participants and found that those who reported facial redness after drinking were up to 2.27 times more likely to have highblood pressure compared to those who didn’t experience alcohol-related redness.   This syndrome has been associated with an increased risk of esophageal cancer in those who drink. It has also beenrelated with lower than average rates of alcoholism, possibly due to the adverse effects after drinking alcohol. Since themutation is a genetic issue, there is no cure for the flush reaction. The easiest prevention would be not to drink alcohol atall.
46. What is the passage mainly about?
(A) Metabolism.
(B) A syndrome.
(C) Acetaldehyde.
(D) High blood pressure.

參考答案

答案：B
難度：非常困難0
統計：A(0),B(0),C(1),D(0),E(0)

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