【单选题】
She invited 500 people()her beautiful ship.
A、abroad
B、aboard
C、board
D、broad
A、abroad
B、aboard
C、board
D、broad
A、UAS产生一个INVITE消息,发起一次会话 B、UAC产生一个INVITE消息,发起一次会话 C、UAC处理对INVITE消息的响应 D、UAS收到INVITE消息,处理并进行响应
A、She is a typist B、She is talking to her friend C、She is having a holiday. D、She is my sister.