阅读理解回答问题( 找文章中的原句回答,适当改动人称 ,首字母大写,句尾句号“.”)二 6.What are germs passed from hands when they land on your hands? 7.What isn’t nagging ? 8.What do t he Centers for Disease Control suggest ? 9.What do the New York City subway officers ask the passengers to do? 10.How long was the suggestion taken?