单项选择题
Conversation 2
Questions 8 to 10 are based on the conversation you’ve just heard.
[听力原文] 8-10
M：When was the first computer built
W：It was built in 1944.
M：Is it the same as the computers that we use now
W：No，it was as large as a room and worked very slow.
M：But computers have become smaller，and worked faster now.
W：Yes. Most computers are as small as a TV set. Some can be made smaller than a book.
M：Why is a computer so useful
W：It can keep much information and work very fast.
M：Then they can do a lot of work for us.
W：You are right. They have greatly changed our lives.
A．It was as large as a TV set.
B．It was as large as a room.
C．It was as large as a book.
D．It was as small as a palm.