参考答案:A
男性,54岁,上腹部疼痛不适4个月,食欲差,消瘦,口服药物治疗无明显缓解。体检:消瘦,中上腹轻度压痛,腹部未触及明显包块,移动性浊音阴性。大便潜血试验阳性。
若检查结果显示为胃窦部溃疡性癌,癌肿直径约2cm,术中见肿瘤未侵及浆膜,宜选择的治疗是() A crankshaft whose center of gravity coincides with its center line is said to be()
Ⅰ.statically balanced
Ⅱ.dynamically balanced
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