题目

— I missed the beginning of The Voice of China yesterday evening.— ! But you can watch the re-play tonight.A. What a pity B. Hurry up C. Try your best D. I don’t think so 答案：【答案】A【解析】句意：——昨天晚上我错过了中国好声音的开场。——真遗憾!但你今晚可以看重播。考查日常交际用语。A. 真可惜；B. 快点；C. 尽你所能；D. 我不这么认为。根据上文I missed the beginning of The Voice of China yesterday evening.可知后面三项意思不合句意，故选A。已知集合A，B=，且，求实数的取值范围.