2. 外语
  3. It’s the first question parents ask when their child is diagnosed with autism (自闭症). Will his future brothers or sisters have a

It’s the first question parents ask when their child is diagnosed with autism (自闭症). Will his future brothers or sisters have a

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问题    It’s the first question parents ask when their child is diagnosed with autism (自闭症). Will his future brothers or sisters have a higher risk of 【C1】______ it, too?
   According to the largest study of siblings (兄弟姐妹) in families with autism, the answer is yes. Among 664 children who had at least one older sibling with the developmental disorder, the 【C2】______ risk of autism was nearly 19%,【C3】______higher than previous sibling-recurrence estimates that were anywhere from 3% to 10%. Kids with more than one older autistic sibling had an even higher risk of the disorder: 32%.
   The【C4】______suggest that genes play a key role in autism risk. But they also hint that other environmental factors【C5】______by siblings, like influences in the womb (宫), may be important as well.
   On the【C6】______of the findings, the researchers recommend that doctors closely【C7】______younger siblings of autistic children to pick up any early signs of the disorder, 【C8】______ an unusually large head or delayed language development and communication skills. Evidence suggests that early 【C9】______ and diagnosis of autism can help children take advantage of therapies that can treat some of its【C10】______.
   A) average B) basis C) common D) consequently
   E) detection F) developing G) distributed H) dramatically
   I) including J) monitor K) reason L) results
   M) shared N) symbols O) symptoms
【C6】
选项
答案B
解析 由前面的冠词the可知这里需要填一个名词，以上段落讲述的是研究内容和结果，那么这里研究人员所推荐的内容自然是基于上述发现结果，故选basis。
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大学英语四级

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