问题
单项选择题
How long will it take experts to agree how to measure obesity().
A. Half a year.
B. One year.
C. One and a half year.
D. Two years.
答案
参考答案：C
解析：
[难点] 从“Audit Commission and National Audit Office’re pointing out it’s taken 31 ex- pens 18 months to agree how to measure obesity”。一句中记下18月这个时间，并进行简单转换，可得出“一年半”这个时间段。