用GOD-POD法测定血清葡萄糖浓度
第二步反应所用的酶是()
A.乳酸脱氢酶
B.葡萄糖氧化酶
C.己糖激酶
D.过氧化物酶
E.丙酮酸激酶
参考答案:B
患者,男性,48岁。过去因痔疮间断有大便带血,近两月来,大便持续性带血,并伴大便习惯改变。需要首先进行的最简便有效的诊断方法是()。
A.钡灌肠
B.直肠指诊
C.纤维结肠镜检查
D.腹部B超
E.腹部CT
—Excuse me, where is Mr Brown's office?
—Sorry, I don't know. I ______ here for only a few days. [ ]
A. work
B. worked
C. have worked
D. will work