I was impressed by the way she _____ confidence and kindness. A: radiated B: propagated C: propelled D: qualified

This archaeologist made a study of the vast area through which the Roman civilization has been propagated. （） A: extended B: terminated C: speculated D: restricted

The early missionaries ______ the teaching of Christianity to the natives of Pacific islands but received cold responses. A: consolidated B: originated C: assimilated D: propagated

前馈神经网络的模型训练通常采用反向传播(BP, back propagated)算法进行参数调优，BP算法是一种梯度下降算法。