问题
单项选择题
| Questions 11 to 18 are based on the conversation you have just heard. |
A．European tradition.
B．Employment.
C．Weights and measurements.
D．US political system.
答案
参考答案：B
解析：[听力原文]W: Whereas European nations have traditionally employed metric units such as meters and grams, the US has employed English units such as feet and pounds.M: Both systems are now in use in the US, though.Q: What are the two people talking about
