Hai has been informed that JKL Limited, a company in which he owns shares, has become insolvent. He had previously made several investments in shares and bonds issued by the company.The initial investment was a purchase of partly paid shares at half their nominal value. Encouraged by the capital growth and dividends on the investment immediately after the investment, Hai then purchased further shares at a price in excess of their nominal value. Hai also invested in bonds issued by the company.Hai’s brother has informed him that there is no need to worry as the bondholders will be given priority for the return of their capital, that there will be no further liability arising from the first purchase of shares and that the premium paid for the second purchase of shares can be recovered from the liquidator.Required:Discuss Hai’s potential rights and obligations arising from his ownership of the securities. (10 marks)

医疗用毒性药品叙述错误的是（）

A.毒性剧烈的药品

B.治疗剂量与中毒剂量相近的药品

C.使用不当会致人中毒或死亡的药品

D.医疗用毒性药品包括西药和中药两大类

E.西药毒性药品品种包括原料药和制剂