铵被土壤中的粘土矿物所吸持而形成非交换性铵的过程称（）。

Just as Professor Scott often________it，success is ninety­nine percent mental attitude.

A．gets

B．makes

C．puts

D．means

什么叫瓦斯的爆炸上限、下限和最强爆炸浓度？

Kashif holds 20% shares in the issued share capital of Crown Textile Limited (‘CTL’), a public unlisted company, which has made significant profits over the years. Kashif heard from another shareholder, Qasim, that over the past six months, three extraordinary general meetings were held to discuss the proposed merger of CTL with another company.Kashif had not received any notices of these meetings and had no knowledge of them. Kashif went to CTL’s registered office during business hours to enquire about this matter and check whether the members’ register contained his correct address. CTL’s company secretary informed him that he may come back next week. In spite of three more attempts, Kashif has not been allowed to inspect the register.Subsequently, an employee at the registered office has informed Kashif that the members’ register and other statutory books have not been maintained and other shareholders have also complained about this matter.Required:Under the Companies Ordinance, 1984, advise Kashif on the grounds on which he may seek winding up of CTL by the court, and his chances of succeeding in such a claim. (10 marks)

大肠埃希菌与沙门菌、志贺菌具有鉴别性的生化反应是（）

A.乳糖发酵

B.山梨醇发酵

C.葡萄糖发酵

D.硫化氢试验

E.明胶水解试验

下列配伍中属于相使的是（）

A.麻黄配杏仁

B.人参配莱菔子

C.党参配黄芪

D.生姜配黄芩

E.生姜配生半夏