单选题 This ambitious project, ______ scores of organizations around the world, will take at least ten years to be accomplished.

【正确答案】 C

【答案解析】[解析] 本题测试词义辨析。indicating“显示，表明”；composing“组成，构成”；containing“包含，包括”；involving“包括”，注意这里如果用involve需要加上固定搭配in。故答案为C。