We ______ our dinner when a neighbor came to our house.

A．had just had

B．have just had

C．just had

D．just have had

无须进行治疗药物监测（TDM）的情况是（）

A.使用治疗指数低、安全范围窄的药物时

B.长期用药时

C.合并用药时

D.药物本身具有客观而简便的效应指标时

E.婴幼儿、老年人用药时