问题
单项选择题
| Questions 23-26 |
A．(A) 30 percent.
B．(B) 45 percent.
C．(C) 50 percent.
D．(D) 75 percent.
答案
参考答案：C
解析：[听力原文]By the time a speaker’s finished a 10-minute talk, how many percent would an average listener forget what was said
