读短文，判断正(√)误(×)。

      On Sunday Ben doesn't go to school. He gets up at eight o'clock. Then he goes to the library at nine fifteen.

He reads English stories there. Ben loves reading. He plays football in the morning with his friends, too. They

play at ten thirty. He visits his grandma with his parents at two o'clock. His grandma lives on a farm. They have

dinner together. Then Ben and his parents go home at eight o'clock.

( ) 1. Ben goes to school at eight on Sunday.

( ) 2. He goes to the library at nine fifteen.

( ) 3. Ben plays with his friends at ten thirty.

( ) 4. His parents visit his grandpa at two fifteen.

( ) 5. Ben eats dinner with his friends.

( ) 6. Ben goes to bed at eight o'clock.

甲状腺大部切除术后，呼吸困难和窒息的并发症与下列哪项因素无关

A．手术创伤的应激诱发危象

B．切口内出血压迫气管

C．气管软化塌陷

D．喉头水肿

E．喉返神经损伤两侧声带麻痹