已知抑制胃酸分泌最强的药物是()
A.哌仑西平
B.西咪替丁
C.丙谷胺
D.阿托品
E.奥美拉唑
参考答案:E
解析:PPI类药物为目前已知的抑制胃酸分泌最强的药物。
At the time of the earthquake Jeff was still in his office. He ________ to finish a project before he left for the day.
A.has tried
B.had tried
C.has been trying
D.had been trying