同级别的火灾信号，（）优先；只有在原火灾（）之后，才接收新的同级别信号。
参考答案：先发；复位
You have to keep on learning if you want to keep ______ with the development of modern science and technology.
A．peace
B．touch
C．pace
D．connect
对确实有需要使用麻醉药品的住院和门诊病人，单张处方限量为1天常用量。
