叶绿素在光合作用过程中的作用是[ ]

A．吸收和转化光能    

B．释放光能  

C．传递光能          

D．储存光能

Ships sailing in（）are able to receive and print out EGC message.

A.a fixed area or Navarea in any ocean region

B.a Navarea or weather forecast area

C.the designated area or given geographic position

D.anywhere of the world