人拉着重150牛的木块在水平地面上沿直线匀速前进了20米，人的水平拉力是90牛，那么，木块在前进中受到的摩擦力为______牛，人对木块所做的功是______焦．

The paradoxical aspect of the myths about Demeter, when we consider the predominant image of her as a tranquil and serene goddess, is her agitated search for her daughter.

A. when considering the predominant image of her as
B. when consider the predominant image of her as
C. while considering the predominant image of her like
D. if we consider the predominant image of her like