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請依下文回答第 11 題至第 13 題 There is no single cause of mental retardation, but researchers have uncovered several causes, some of which are preventable. Brain damage due to genetic conditions is a well-known cause of mental retardation. Most people are familiar with Down’s syndrome, which is caused by the formation of an additional chromosome. The normal number of chromosomes for people is 46; babies with Down’s syndrome have 47. Another chromosome-related cause of mental retardation is a malformation of the X-chromosome. Fortunately, blood tests can detect this problem early and immediate measures can be taken to limit the damage. Not all brain damage resulting in mental retardation occurs because of problems in the genetic makeup of the infant. Certain infectious diseases that the mother may contract during pregnancy can adversely affect the developing brain of the baby, particularly if the mother catches these diseases during the first three months of her pregnancy. These diseases include rubella, herpes simplex, and syphilis. Because they are infectious, to a certain extent they are preventable. Another preventable cause of mental retardation in newborns relates to what the pregnant woman ingests. Certain drugs are known to hinder the development of the baby’s brain such as thalidomide. However, the most easily preventable cause of mental retardation is fetal alcohol syndrome. Drinking as little as one or two glasses of wine a week during pregnancy could result in physical and intellectual impairments in the infant.
【題組】11 According to the passage, which of the following statements is true?
(A) Women over twenty-five have a higher risk of having babies with Down’s syndrome.
(B) Blood test is a very effective way to detect early mental retardation.
(C) Thalidomide is a medicine that benefits women during pregnancy.
(D) Drinking as little as one or two glasses of wine a week is never a factor for mental retardation.

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 【站僕】摩檸Morning：有沒有達人來解釋一下?
倒數 3天 ,已有 1 則答案
lumous2001 大二上 (2019/01/20):

參考翻譯:

沒有單一的精神發育遲滯的原因，但研究人員已經發現了幾個原因，其中一些是可以預防的。遺傳條件造成的腦損傷是眾所周知的精神發育遲滯的原因。大多數人都熟悉唐氏綜合症，這是由額外染色體的形成引起的。人的正常染色體數是46;患有唐氏綜合症的嬰兒有47.與染色體相關的精神發育遲滯的原因是X染色體的畸形。幸運的是，驗血可以及早發現這個問題，並可立即採取措施來限制損害。由於嬰兒的遺傳構成存在問題，並非所有導致精神發育遲滯的腦損傷都會發生。母親在懷孕期間可能感染的某些傳染病可能會對嬰兒發育中的大腦產生不利影響，特別是如果母親在懷孕的前三個月內感染這些疾病。這些疾病包括風疹，單純皰疹和梅毒。因為它們具有傳染性，在一定程度上它們是可以預防的。新生兒精神發育遲滯的另一個可預防原因與孕婦攝入的內容有關。已知某些藥物會阻礙嬰兒大腦的發育，例如沙利度胺。然而，最容易預防的精神發育遲滯的原因是胎兒酒精綜合症。在懷孕期間每週喝一到兩杯葡萄酒可能會導致嬰兒的身體和智力障礙。

11根據該段落，以下哪項陳述屬實？(B)

（A）超過二十五歲的女性患嬰兒唐氏綜合症的風險較高。

（B）驗血是檢測早期智力低下的一種非常有效的方法。

（C）沙利度胺是一種在懷孕期間使婦女受益的藥物。

（D）每週喝一到兩杯葡萄酒絕不是精神發育遲滯的一個因素。

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請依下文回答第 11 題至第 13 題 There is no single ..-阿摩線上測驗