Look! The pond ________, and no fish in it can survive.

A．dries up

B．has dried up

C．had dried up

D．dried up

抑制胃壁细胞分泌H⁺而治疗消化性溃疡的药物是

A．奥美拉唑
B．特布他林
C．雷尼替丁
D．氯苯那敏