We think we may have an almost complete understanding of the set of abnormal genes which drive this cancer.我们认为我们可能已经对导致癌症的一系列异常基因有了几乎完全的了解。 A: natural B: unusual C: typical D: unexceptional

Part Two 从A、B、C、D四个选项中选取恰当的词来代替句子中划线的词。We think we may have an almost complete understanding of the set of abnormal genes which drive this cancer.我们认为我们可能已经对导致癌症的一系列异常基因有了几乎完全的了解。 A: natural B: unusual C: typical D: unexceptional