阅读理解。根据短文内容判断正(T)误(F)。

     Class 9 had a great time on the school trip. They went to Blue Water Aquarium for the day. First they

 visited the Visitors' Center and watched a movie about sharks. Then they watched a dolphin show. After

 that, they went to the Outdoor Pool and saw a big octopus. After lunch, they went to the Gift Shop and

  bought lots of gifts. Finally, tired but happy, they took the bus back to school. At the end of the day, the

  science teacher was very happy because the class monitor cleaned the bus after the trip.

( ) 1. The students had a great school trip.

(     ) 2. They saw an octopus in the Visitors' Center.

(     ) 3. They took the subway back to school.

(     ) 4. The students watched a movie about sharks.

(     ) 5. The science teacher cleaned the bus.

治疗疟疾，最佳服药时间为（）

A.疟疾正发之时

B.疟疾发作前二个小时

C.疟疾发作后二个小时

D.疟疾发作前八个小时

E.每日早、中、晚各服一次