由法拉第电磁感应定律知（设回路的总电阻一定）

A．穿过闭合回路的磁通量达到最大时，回路中的感应电流最大

B．穿过闭合回路的磁通量为零时，回路中的感应电流一定为零

C．穿过闭合回路的磁通量变化越大，回路中的感应电流越大

D．穿过闭合回路的磁通量变化越快，回路中的感应电流越大

Questions 23～26

A. Those that used to be meant for adults only.
B. Those that divides childhood and adulthood.
C. Those that are only related to information technology.
D. Those that can help reduce the level of stress.