题目内容
18.The successful cloning of this baby was seen as a medical breakthrough.分析 这个婴儿的成功克隆被看作是一个医学突破.
解答 答案:breakthrough 考查首字母填空.根据句意及句子结构,要填入名词,breakthrough意为"突破,重大成就",是可数名词.
点评 考查首字母填空,准确地理解句子、翻译句子,然后根据句意及提示写出单词,完成句子,使句意更通顺.
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