慢性咽炎是咽部（）、（）及（）的弥漫性炎症。
参考答案：黏膜；黏膜下；淋巴组织
If more readers become comfortable with reading digitally, _____ but the book-collectors will want to buy
paper books. [ ]
A. anyone
B. someone
C. no one
D. none
鲜活类货物出境通关单的有效期为15天。( )
