单选题 It's apparent that the wooden bridge is not strong enough to______the weight of a lorry.
A. retain B. sustain C. obtain D. maintain

【正确答案】 B

【答案解析】[解析] retain意为“容纳，保留”；sustain意为“遭受，支撑”；obtain意为“获得；得到”；maintain意为“维持；维修”。