题目内容
【题目】In this section, we will briefly describe possible ways of reducing the costs and risks __________ in doing this.
A. involving
B. involved
C. to involve
D. being involved
【答案】B
【解析】句意:在本节中,我们将简要描述降低成本和减少风险的可能方法。involve与costs和risks构成动宾关系,用其过去分词表示被动。
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