When foods from different plant sources are eaten together,（ ）in

When foods from different plant sources are eaten together,（ ）in one is compensated for by sufficiency in another.
A、deficiency
B、supply
C、number
D、source
【正确答案】：A
【题目解析】：本题考查名词辨析。deficiency：缺乏，缺少，不足；supply：供给，补给；number：数字，号码；source：来源，原始资料。句意：多种蔬果类食物一起吃的话，一种食物所缺乏的营养会由另一种富含该营养的食物予以补足。故A选项符合题意。