欧洲美元是指美国境外金融机构的美元存款和美元贷款。（）
参考答案：对
命题“若x＞2，则x2＞4”的逆否命题是______．
—Where is Mike?
—_____ . [ ]
A. He is a boy
B. He's my brother
C. He's in the room
D. His last name is Green
