海难
参考答案:
是指船舶和人员及其他财产在海上和与海相通可航水域发生的海上事故。
句型转换
小题1:Do you want to play with us?(同义句)
______ you ______ ______ play with us ?
小题2:My cousin and I live in the same room. (同义句)
I _______ a room ______ my cousin.
小题3:The building has 15 floors.(提问)
______ _______ floors _______ the building _______ ?
小题4:The boy in a red coat is my brother. (提问)
______ ______ is ______ brother?
小题5:Uncle Wang lives next to me . (同义句)
Uncle Wang is _______ _______.
常规调节系统中的关键仪表设备有()。
A.调节器
B.传感器
C.控制器
D.执行器