问题
单项选择题
A. Dr Madison is absent from the conference.
B. Dr Madison is an expert on economics.
C. Dr Madison will present our view of global economy.
D. Dr Madison will preside over the conference this afternoon.
答案
参考答案：D
解析：
Also present at the conference is Dr Madison, who will join our discussion this afternoon to give an expert view on the current situation of global economy.