“五楷两行”是（）简称。
A、五号楷体字，占二行位置
B、两号楷体字，占五行位置
C、五号楷体字有两行
D、两号楷体字有五行
参考答案：A
Do you think that bridge ____ 2,000 meters long? It doesn't seem ____ long. [ ]
A. measures, that
B. is measured, so
C. is measured, such
D. measures, much
A．若磁场正在增强，则电场能正在减少，电容器上极板带正电
B．若磁场正在减弱，则电场能正在增强，电容器上极板带正电
C．振荡电流的变化周期为：2π
D．电场能量的变化周期为：π
