填空题 Many petroleum products can 1 as raw materials for the chemical industry.
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【正确答案】 1、make    
【答案解析】解析: Many petroleum (石油)products (产品)can serve(适合) as raw(生的) materials (原料)for the chemical (化学)industry(工业). 许多石油产品可作为化学工业的原料