单选题 Children usually ______ after an illness much more quickly than adults.
  • A. pick over
  • B. pick up
  • C. pick on
  • D. pick off
【正确答案】 B
【答案解析】B项pick up“恢复精神，恢复”。A项pick over“仔细检查以挑选出优品”；C项pick on“作弄，总是挑剔”；D项pick off“摘掉”。译文：儿童病后通常比成人恢复得更快，故B项正确。