下列胃大部切除术后并发症中,不考虑再次手术治疗的是
A.吻合口溃疡B.吻合口机械性梗阻C.严重的碱性反流性胃炎D.胃排空延迟E.十二指肠残端破裂
参考答案:D
Manual always talks but does . so everyone likes him.
A. few, little B little, much C. less, more D. more, less
Klenow片段不具有()
A.DNA聚合酶活性
B.5′→3′核酸外切酶活性
C.3′→5′核酸外切酶活性
D.604个氨基酸
E.DNA-polⅠ的C端