【名词&注释】
群众路线(mass line)、缺铁性贫血(iron deficiency anemia)、独立自主(independence)、执政为民(government for the people)、胃蛋白酶原(pepsinogen)、中国革命和建设(chinese revolution and construction)、立党为公(the party for the people)、武装斗争(armed struggle)、基本立足点(the basic tendency)、坚持与时俱进(adhering to keeping pace with the times)
[多选题]胃酸的作用有（ ）
A. 激活胃蛋白酶原
B. 为胃蛋白酶提供酸性环境
C. 杀死食物中的细菌
D. 使脂肪易于分解
E. 有利于脂溶性维生素的吸收
根据以下内容，回答下面的题目。The death of a child, _51_ one’s own child,is something the mind can hardly comprehend．It seems togo _52_ nature．The end of a life that is still forming_53_ has just begun is an almost unthinkable cruelty．But it happens．Parents sometimes must witness the illness and death of the children_54_ whom they gave birth．And _55_ will ever fill theempty place that the dead child leaves behind．Parents_56_ to die before their children, which is the natural order of life events．When the situation is reversed and a child dies _57_ the parents itseems wrong．Yet we never know why one person dies andanother lives．But we do know _58_ a child is gone, theparents still have a future, as grey and worthless as it may at first seem．Death may take the child, but the love never _59_．The sorrow after a child’s death is one ofthe longest and hardest type of _60_ to live with．And ittakes long to deal with the parents’ own emotions．__________
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