问题详情：
When you look at ________ great effects the climate change has on our life, you'll agree that it is the most pressing global problem.
A. which B. how
C. what D. why
【回答】
C 句意：当你看到气候变化对我们的生活有多么大的影响时，你会同意它是最紧迫的全球*问题。what引导宾语从句，在从句中作定语。
知识点：连词
题型：选择题
