【題目】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：在本節(jié)中，我們將簡(jiǎn)要描述降低成本和減少風(fēng)險(xiǎn)的可能方法。involve與costs和risks構(gòu)成動(dòng)賓關(guān)系，用其過去分詞表示被動(dòng)。

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