Question

【题目】By making it possible for cancer to be detected early in people with no symptoms through a simple blood test, we aim to greatly decrease cancer deaths by finding the disease at a stage ______ it can be cured.

A. which B. when

C. where D. what

Answer 1

【答案】B

【解析】考查定语从句。句意：通过简单的血液测试发现早期没有症状的癌症患者，我们的目的在于通过在癌症还可以治愈的时候发现这种疾病来大大减少癌症死亡率。stage意为“阶段”，在此是定语从句先行词，在定语从句中做时间状语。when表示时间，故此用when来引导定语从句。故选B。