4，4，16，144，( )
A．162
B．2304
C．242
D．512
参考答案：B
No progress was made in the trade talk as neither side would accept the conditions of ______. [ ]
A. others
B. the other
C. either
D. another
A．变压器输出功率为200W
B．若n1=100匝，则输出端线圈的磁通量变化率的最大值为2Wb/s
C．副线圈两端的电压表示数20V
D．变压器的输入功率是由发电厂的输出功率决定的
Wb/s
V