问题 单项选择题 B型题

目前取代天然油脂较理想的栓剂基质是()

A.可可豆脂

B.泊洛沙姆

C.甘油明胶

D.半合成脂肪酸甘油酯

E.聚乙二醇类

答案

参考答案:D

解析:可可豆脂有α、β、β′、γ四种晶型,其中以β型最稳定,具有同质多晶性。半合成或全合成脂肪酸甘油酯具有化学性质稳定、成形性和保湿性良好、适宜的熔点、不易酸败的特点,为目前取代天然油脂较理想的栓剂基质。甘油明胶系将明胶、甘油、水按一定的比例在水浴上加热融和,蒸去大部分水,放冷后经凝固而制得,本品具有很好的弹性,不易折断,在体温下不融化,但能软化并缓慢溶于分泌液中缓慢释放药物,多用作 * * 栓剂基质。

单项选择题
问答题

Although Henry Ford’s name is closely associated with the concept of mass production,he should receive equal credit for introducing labor practices as early as 1913 that would be considered advanced even by today’s standards. Safety measures were improved, and the workday was reduced to eight hours, compared with the ten-or-twelve-hour day common at the time. In order to accommodate the shorter work day, the entire factory was converted from two to three shifts.
In addition, sick leaves as well as improved medical care for those injured on the job were instituted. (47)The Ford Motor Company was one of the first factories to develop a technical school to train specialized skilled laborers and an English language school for immigrants. Some efforts were even made to hire the handicapped and provide jobs for former convicts.
(48)The most widely acclaimed innovation was the five-dollar-a-day minimum wage that was offered in order to recruit and retain the best mechanics and to discourage the growth of labor unions. Ford explained the new wage policy in terms of efficiency and profit sharing. He also mentioned the fact that his employees would be able to purchase the automobiles that they produced—in effect creating a market for the product. (49)In order to qualify for the minimum wage, an employee had to establish a decent home and demonstrate good personal habits,including sobriety,thriftiness,industriousness,and dependability. (50)Although some criticism was directed at Ford for involving himself too much in the personal lives of his employees,there can be no doubt that,at a time when immigrants were being taken advantage of in frightful ways,henry Ford was helping many people to establish themselves in America.