将外侧着陆灯的三位置开关放“接通”位时()
A.灯伸出
B.灯收回
C.灯伸出并点亮
D.灯收回并点亮
参考答案:C
— _____ is the park?
— It's on Center Street. [ ]
A. What
B. When
C. Where
D. How
咳声短促,连续不断,咳后有鸡鸣样同声称为( )
A.顿咳
B.肺痨
C.肺痈
D.肺痿
E.白喉