参考答案

正确答案：C
解析：词汇题。要根据词汇所在句子或者上下文的语境判断词汇的具体意思。Chemistry出现在句子“Research suggests that chemistry can be felt within the first thirty seconds of meeting someone，and that is what speed dating is all about，knowing quickly if you are going to like someone”中，该句有两点提示：①“chemistry can be felt”，据此可以判断chemistry应该是当事人感受到的东西：②and that is what speed dating is all about， knowing quickly if you are going to like someone．句子中出现like，意为“喜欢，喜爱”。选项中attraction(吸引，好感)意义与此一致。