以下属于分布式电容分压器测量误差的是()。
A.幅值误差
B.频率误差
C.波形误差
D.时延误差
参考答案:A
—Would you permit me ___________ here?
— Sorry. We don’t permit ___________ in the lab.
A.smoking; smoking
B.to smoke; to smoke
C.smoking; to smoke
D.to smoke; smoking
冯特创立了第一个完整的学习理论。( )