问题 单项选择题 A型题

中药材生产关系到中药材的质量和临床疗效。下列关于中药材种植和产地初加工管理的说法,错误的是()。

A.禁止在非适宜区种养殖中药材

B.中药材产地初加工严禁滥用硫磺熏蒸

C.对地道药材采收加工应选用现代化、产业化方法

D.对野生或是半野生药用动植物的采集应坚持“最大持续产量”的原则

答案

参考答案:C

单项选择题
单项选择题

Until recently, most population growth has occurred in relatively dense urban environments. In (91) words, even if we were witnessing rapid population growth, that would not mean that the (92) were filling in with people. (93) , the urban areas would tend to become more crowded. Historically, we find that people have moved to (94) the jobs were. Jobs were usually in ports or locations with many natural (95) . After transportation became relatively cheap, other geographical locations became (96) of economic activity. One factor that determines where people will move to, even when transportation becomes cheap, is (97) . And individuals working in cities (98) higher incomes than those working in (99) areas. Hence, population has tended until the 1970s to (100) in our major urban centers. Recently population has (101) out of the Northeast to the South and to the West for the more pleasant climates. If people did not (102) from living in large cities, there would likely be a much more even population distribution (103) our entire land area. Probably, if this (104) the case, there would be less concern over population (105) Indeed, one need only (106) a cross-country drive or plane trip to realize how (107) populated these United States really are. This is not to say that we should or should not do something about (108) growth. The shortage of people in certain areas merely demonstrates that overpopulation in the United States is really only a problem in (109) urban environments. And this problem may be slowly correcting (110) .

A.other

B.another

C.one another

D.those