八甲磷35mg/kg灌胃可引起成年大鼠 100%死亡，而初生大鼠无死亡，此为

A．实验动物的物种与毒效应
B．实验动物的品系与毒效应
C．实验动物的性别与毒效应
D．实验动物的年龄与毒效应
E．实验动物的生理营养状况与毒效应

For a child receiving steroids in therapeutic doses over a long period, the nurse should pay more attention on which of the following（）

A. Monitor the child’s serum glucose level.

B. Decrease the child’s ingestion of potassium-rich foods.

C. Give the drug on an empty stomach.

D. Monitor the child’s temperature to assess for infection.