通常情况下,电路中通过同一()的分支称为支路。
A、单位
B、电压
C、电流
D、电位
参考答案:C
Recharging a previously used cartridge-operated dry-chemical extinguisher is accomplished by().
A.authorized fire equipment servicing personnel only
B.replacing the propellent cartridge and refilling with powder
C.puncturing the cartridge seal after installation
D.recharging the cartridge and refilling it with powder
案例十
心理咨询师应首先解决的问题是( )。
A.男友问题
B.父母问题
C.女儿问题
D.学习问题