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支气管哮喘（）
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三、不定项选择题，每题所给的选项中有一个或一个以上正确答案，不答、少答或多答均不得分。 2000年5月13日，甲(17岁)在A市街道上闲逛时遇到与自已有仇隙的乙，乙抽出随身携带的三棱刮刀追逐甲，甲躲闪不及，被乙砍伤颈部，眼看就要刺中头部，甲慌乱之中操起路边的一根木棒抵挡，一下就将乙打倒在地(事后鉴定颅部受严重损伤死亡)。甲以为只是将乙某打晕，正好趁机逃走，刚走几步，忽然遇见乙的哥哥丙带着四五个小青年过来，丙看到弟弟被打倒，和几个青年一起持匕首朝甲冲过来。甲因受伤跑不快，背上被砍好几刀，血流不停，一路大呼救命也无人理睬。恰巧此时一中年妇女骑一摩托车经过，甲不顾一切猛地将中年妇女推下车，抢过摩托车逃走，事后将摩托车抛至一悬崖下损毁。中年妇女因手臂受轻伤花费医疗费1500元整，甲亦受轻伤，后被抓获。回答以下问题： 关于自杀行为，下列说法正确的是：
长春新碱治疗急性淋巴细胞白血病时的主要不良反应有
During the 1980s, unemployment (失业人数) and underemployment (不充分就业) in some countries was so high as 90 per cent. Some countries did not 【B1】 enough food; basic needs in housing and clothing were not 【B2】 . Many of these countries looked 【B3】 the industrial processes of the developed nations for solution. 【B4】 , problems cannot always be solved by 【B5】 the industrialized nations. Industry in the developed nations is highly automated and very 【B6】 . It provides fewer jobs than labor-intensive industrial 【B7】 , and highly skilled workers are needed to 【B8】 and repair the equipment. These workers must be trained, 【B9】 many nations do not have the necessary training institutions. Thus, the 【B10】 of importing industry becomes higher. Students must be sent abroad to receive vocational and 【B11】 training. 【B12】 , just to begin training, the students must 【B13】 learn English, French, Germans, or Japanese. The students then spend many years abroad, and 【B14】 do not return home. All nations agree that science and technology should be shared. The point is: countries 【B15】 the industrial processes of the developed nations need to look carefully 【B16】 the costs, be cause ninny of these costs are 【B17】 Students from these nations should 【B18】 the problems of the industrialized countries closely. 【B19】 care, they will take home not the problems of science and technology, 【B20】 the benefits.
鉴定是否无质粒转入受体菌的方法是（）
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