声波引起耳的相应结构产生振动的传导顺序,一般是( )
A.外耳→中耳→内耳
B.咽鼓管→鼓室→内耳
C.鼓膜→听小骨→外耳道
D.前庭→耳蜗→半规管
答案:A
视讯终端结束会议有两种方式即()结束和主动结束。
The ________ expression on her face suggested she was_________ when he heard the news.
A.amazing; amazed
B.amazed; amazing
C.amazed; amazed
D.amazing; amazing