Question

【题目】【原创】 Vehicles, coal-burning, airborne dust and industrial production ______85 to 90 percent of the major airborne pollution sources in most Chinese cities, the newest research shows.

A. account for B. call for

C. make up for D. provide for

Answer 1

【答案】A

【解析】A。句意：最新研究显示，机动车、燃煤、扬尘以及工业生产是我国大部分城市大气污染主要来源，约占85%到90%。account for说明……的原因，占……比例；call for 要求; make up for补偿，弥补；provide for 供养; 故选A。