单选题
Which of the following is true, according to the tour guide?
【正确答案】
B
【答案解析】[题解] 注意回答问题的关键是白宫里没有什么?在最后一段里介绍说Public telephones and restrooms are not available at the White House。但是文章中还提到有一处地方是有的:Please note that restrooms are available, but food service is not。但是,那是在White House Visitor Center,而不是在白宫里。