“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