单选题 The custom is ______ in the belief that a new pregnancy — through its detrimental effect on breastfeeding — would endanger the mother's health.(2002年10月中国科学院考博试题)
【正确答案】 B
【答案解析】解析:本题中,B项“observe遵守”符合题意。其他三项“celebrate庆祝;view观察,看待,认为;present展示”都不正确。