hear   stop  remember  take   drive 

Songyang was a bus driver. On March 9, 2013, he 小题1:____________the bus from Liaocheng to Jinan and all the passengers were talking and laughing on the bus. To their surprise, the bus stopped suddenly near the roadside. And they 小题2:___________ a voice coming from the front of the bus, “Quick! Quick! Please call 120, and I feel terrible.” Those were Song’s last words. Then Song lost consciousness. And some passengers helped Song at once. He 小题3:____________ to the hospital as quickly as possible. The bus video told us what happened. At 10:15, Song began to shake his body and he tried his best 小题4:______________the bus and opened the bus door for the passengers. After the doctors checked Song carefully, they said Song was badly ill on the bus but he depended on his strong will to protect all the passengers. Song left us at last because of his serious illness. We小题5:______________ the best driver forever(永远).

如果要求室内分布系统的信号覆盖很均匀，那么每天线口的输出功率就要做到基本一致，这对于无源分布系统来说是很难做到的，比较适宜采用（）和（）。