单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A．The early history of bookbinding.
B．Economical ways to protect old books.
C．How old books become valuable.
D．Why some books decay.

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1．在大企业工作的特点2．在小企业工作的特点3．我的选择To Be a Small Fish in a Big Pond or a Big Fish in a Small Pond

Questions 19 to 22 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。