试题与答案

压裂施工曲线包括压力、()、排量。

题型:填空题

题目:

压裂施工曲线包括压力、()、排量。

答案:

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在城市和经济发达地区,因缺乏合理营养知识,膳食摄入不平衡,加上活动量不足,青少年肥胖率逐年上升.下面是一份较为合理的早餐食谱:几块面包、一杯牛奶、适量的蔬菜和水果.图一为中国居民“平衡膳食宝塔”示意图,图二表示淀粉、蛋白质和脂肪在消化道各部位被消化的程度.请分析下图并回答问题:

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(3)图二中,D所代表的消化道部位是______,它是人体内消化食物和吸收营养的主要场所,它含有______、______和______等多种消化液.

(4)蔬菜和水果中含有丰富的维生素,如果人体缺乏______,就容易得坏血病.

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