下列哪项是慢性胰腺炎最突出的症状
A.腹痛
B.脂肪泻
C.消瘦
D.恶心和呕吐
E.血糖升高
参考答案:A
When Mom looked back on the early days of their marriage, she wondered how they had managed
with ________ money. [ ]
A. so few
B. such few
C. so little
D. such little
老年人骨密度的高低主要由以下哪几种因素决定()
A.骨成熟期所能达到的峰值骨密度
B.血清碱性磷酸酶浓度
C.达到峰值后骨质丢失的速度
D.血清钙浓度
E.尿钙浓度