The client with a total laryngectomy receives tube feedings to meet his fluid and nutrition needs. The nurse explains to the client that the purpose of the tube feedings is to

A. prevent pain from swallowing.
B. prevent fistula development.
C. ensure adequate intake.
D. allow for adequate suture line healin

公路中央有条白色断线，表示什么？（）

A.只有你的车子转入交叉路口时方可超过此线

B.只有你超过他人车子时方可超过此线

C.如果不妨害交通，你可超过此线

D.只有你的车子转入车场出入道口（Drive way）或小巷时方可超过此线