用血管加压素治疗上消化道出血,其作用是
A.减少内脏血流,降低门静脉压B.减少有效循环血容量,降低门静脉压C.抑制胃酸分泌D.增加胃黏膜抵抗力E.中和胃酸
参考答案:A
— The newly-released album was wonderful but not exactly a _____ success.
— Quite true, it didn't make much profit. [ ]
A. favorable
B. fundamental
C. financial
D. flexible
在电镀镍铁合金工艺中,()是阳极活化剂。
A、硫酸镍
B、硼酸
C、氯离子
D、十二烷基硫酸钠