妊娠禁用的药物是
A．大黄B．芒硝C．青皮D．麝香E．附子
参考答案：D
动物社群行为指
A．同一群体中各成员明确分工
B．同一群体中发生的各种联系行为
C．同一群体中个体中互相识别
D．同一群体中除生殖以外的各种联系行为
Explain and distinguish between the following terms in relation to the doctrine of precedent in the Irish legal system:
(a) ratio decidendi and obiter dictum; (4 marks)
