一个灯泡接在三节串联的铅蓄电池上，才能正常发光如果现在用两个同样的灯泡串联后仍接

缓释制剂的释药机理是（）

A．减小药物的扩散速度和减小药物的溶出速率，用药后能在较长时间内持续释放药物以达到延长药效的目的

B．使释药速度接近零级速度过程，药物能在预定时间内自动以预定速度释放，血药浓度长时间恒定维持在有效浓度范围内

C．缩短药物的生物半衰期

D．降低药物的作用强度

E．增强药物对靶组织的特异性，提高药物疗效，降低药物的毒副作用

Sid is a director of two listed public companies in which he has substantial shareholdings: Trend plc and Umber plc.The annual reports of both Trend plc and Umber plc have just been drawn up although not yet disclosed. They show that Trend plc has made a surprisingly big loss and that Umber plc has made an equally surprising big profit. On the basis of this information Sid sold his shares in Trend plc and bought shares in Umber plc. He also advised his brother to buy shares in Umber plc.Vic who is also a shareholder in both companies sold a significant number of shares in Umber plc only the day before its annual report was published.Required:

(a) Analyse the above scenario from the perspective of the law relating to insider dealing; (8 marks)

采购基桩钻芯法检测的钻头时，以下要求正确是（）。

A.金刚石钻头

B.合金钻头

C.外径不宜小于100mm

D.外径不宜小于75mm

下列何种疾病的处方限量为2天

A．慢性结核病等

B．伤风、感冒

C．气管炎、鼻炎等

D．急诊

E．妇科调经药

社会保险的对象为______。

A．资本家
B．官僚阶层
C．雇工阶层
D．工人