Because of advances in medical technology, heart surgery is not __________________(象以前那样危险).

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问题 Because of advances in medical technology, heart surgery is not __________________(象以前那样危险).

选项

答案as dangerous as it formerly was

解析 本题的考查点是同级比较用短语as…as,第二个as 后可接短语也可接从句,此句要用一个从句。
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