单选题

用户双击鼠标时产生的消息序列，下面正确的是（）

Question

A. WM_LBUTTONDOWN，WM_LBUTTONUP，WM_LBUTTONDOWN，WM_LBUTTONUP

B. WM_LBUTTONDOWN，WM_LBUTTONUP，WM_LBUTTONUP，WM_LBUTTONDBLCLK

C. WM_LBUTTONDOWN，WM_LBUTTONUP，WM_LBUTTONDOWN，WM_LBUTTONDBLCLK

D. WM_LBUTTONDOWN，WM_LBUTTONUP，WM_LBUTTONDBLCLK，WM_LBUTTONUP