When they had finished playing, the children were made to _______ all the toys they had taken out.

A．put off

B．put up

C．put down

D．put away

关于强心苷的作用，下述哪种说法是错误的

A．正常人用药后血管阻力升高

B．心衰病人用药后血管外周阻力下降

C．用药后，通过正性肌力作用使心输出量增加

D．抑制肾小管细胞Na+-K+-ATP酶

E．增加肾小管对Na+的再吸收