【题目】Another food crop raised by Indians ______ was strange to the European was called Indian corn.
A．when B．whose C．which D．where
在线课程【答案】C
【解析】
试题分析：考察连词辨析。关系代词which引导状语从句时，在从句中做主语、宾语或表语，which指物，which代替的先行词是crop。whose表示人或物，作定语。定语从句缺主语，故不可选用关系副词when，where。句意：故选C。