题目

阅读下面的短文，回答问题，每题答案均不得超过5个词。 Dream house in California is not a house for only one or two children．It is one for many children．It’s a family． Imagine living on a cold street because there is no other place to stay．These children need a home．They need Dream house． Once upon a time a little girl named Collin Rose decided to offer a warm home to these sick and homeless children．When she grew up , she became a nurse and made her dream come true．In November,2003 , Collin Rose set up Dream house．   Collin Rose’s efforts 13．在叶绿体的色素提取和分离实验中，实验结果表明，在滤纸条上相邻色素带之间距离最大的是（　　）A．叶绿素a和叶绿素bB．叶绿素a和叶黄素C．叶黄素和胡萝卜素D．无法判断