既抑制胃酸分泌又抗幽门螺杆菌的药物是
A.西咪替丁
B.雷尼替丁
C.奥美拉唑
D.阿托品
E.甲硝唑
参考答案:C
—Mrs. Wang was sent to teach English in a poor mountain village last year.
—She said she would never forget some pleasant while working there.
A.experiments
B.expressions
C.experiences
D.emotions
钻具刺漏可能导致(),甚至会造成钻具断落或卡钻。