慢性胃炎经检查HP阳性需选用
A．质子泵抑制剂B．西沙必利C．吗丁啉D．稀盐酸E．铁剂
参考答案：A
She_____ her hometown for many years. No one nearly knows her.[ ]
A. has been away from
B. has left
C. had left
在计算接地电阻时，先要测得或查找（手册）到上壤的（）。
A.密度
B.成分
C.电阻
D.电阻率
