16.哌替啶的不良反應與嗎啡不同的是

A.惡心、嘔吐                                                  B.便秘

C.過量中毒時瞳孔散大                                    D.依賴性

17.對β-內酰胺酶有較高穩(wěn)定性的藥物

A.頭孢哌酮                                                      B.先鋒霉素I

C.羧芐青霉素                                                  D.氨芐青霉素

18.氫氧化鋁與三硅酸鎂合用的主要優(yōu)點是

A.防止堿血癥的產(chǎn)生                                        B.防止便秘或腹瀉

C.減少產(chǎn)氣，減輕胃內壓力                             D.減少胃酸的分泌

19.危重病兒可靠給藥途徑

A.口服給藥                                                      B.皮下注射

C.肌內注射                                                      D.靜脈注射

20.對變異型心絞痛療效最好的藥物是

A.硝酸甘油                                                      B.普萘洛爾

C.硝苯地平                                                      D.硫氮卓酮