一昼夜有______小时，钟面上时针正好走______圈．
一昼夜有24小时，钟面上时针正好走2圈；
故答案为：24，2．
Can you imagine the trouble that they had ___ the orphan in the terrible years?
A．bring up
B．to bring up
C．bringing up
D．brought up
简答GIS中快速接地开关FES的安装位置及作用？
