What did he _____ at the meeting? [ ]
A. say
B. speak
C. talk
D. tell
答案：A
绒癌最常见的死亡原因是（）
A.肾转移
B.肝转移
C.肺转移
D.肠道转移
E.脑转移
下列Java常见事件类中哪个是鼠标事件类
A．InputEvent
B．KeyEvent
C．MouseEvent
D．WindowEvent
