题型:单项选择题 共用题干题 患者男,50岁,左侧舌缘溃疡型肿物4.5cm×2.5cm,深达肌层,内近中线,外侵口底达牙龈缘;左颈上段、中段可触及直径约1.5cm淋巴结各1枚;肿物活检:鳞状细胞癌。舌癌原发灶切除范围应为()。A.半舌切除B.超半舌切除C.舌局部切除D.全舌切除E.局部刮除 查看答案
题型:单项选择题 以下四个关于工艺成本的表达式中,正确的是()。A.全年工艺成本=全年不变费用+单件工艺成本X产品产量B.全年工艺成本=单件可变费用×产品产量C.单件工艺成本=单件可变费用+D.单件工艺成本=+单件产品费用 查看答案
题型:单项选择题 — Where was your brother at this time last night— He was writing an e-mail ______ I was watching TV at home.A. as soon asB. afterC. untilD. while 查看答案