慢性胃炎的疼痛特点
A．腹腔镜检查B．肝穿刺活检有假小叶形成C．钡餐食道下段及胃底静脉曲张D．大量腹水E．白蛋白与球蛋白比值明显倒置
参考答案：E
Treat to a glass of wine to help you relax at the end of the day.
A．one
B．oneself
C．you
D．yourself
某样品测定六次，数据如下：40.15，40.14，40.13，40.14，40.17，40.14，它的平均值为（）。
A.40.15
B.40.145
C.40.16
D.40.14
