Methods It is a randomized double-blind parallel controlled multiple-centered clinical study design. The inpatients 161 cases who accorded program and needed parental nutrition enter this study.
方法本研究为随机双盲、平行对照、多中心实验设计，符合研究方案、需要肠外营养的住院病人161例进入本研究。
On CT study, 6 cases demonstrated cystic-solid feature, 1 case multiple cyst, 6 cases multiple low density. 13 cases had multiple organic metastasis.
多发低密度灶6例。13例均同时存在多脏器转移。结论：脾转移瘤ct表现多样化，脾脏转移出现的意义在于证明广泛转移的存在。
We study the solvability of multiple cases of the problem by providing efficient algorithms.
本文考虑了多种情况，分别给出了相应的算法。
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