【正确答案】
B
【答案解析】[听力原文]
8-9.
M: Miss Polly.
W: Yes, sir. Anything I can do for you?
M: Yes, please make a call to IBM. Tell them that we'll place an order for 50 personal computers.
W: All right. I'll do it at once.
[解析]由原文"we'll place an order for 50 personal computers'’可知本题答案为B。