填空题 Symposium talks will cover {{U}}a wide range{{/U}} of subjects {{U}}from{{/U}} overfishing to physical and {{U}}environment{{/U}} factors that affect the {{U}}populations{{/U}} of different species. A. a wide range B. from C. environment D. populations
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【正确答案】 1、C，改environment为environmental    
【答案解析】[试题分析] 本题考查对句子结构的掌握。 [详细解答] 本句中的physical和environment是并列成分，共同修饰名词factors，因此名词environment应改为其形容词形式。