26.《雷公炮炙論》記載延胡索“心痛欲死，速覓延胡”，與此相關的藥理作用是(      )

A.增加冠脈血流量                                       B.鎮(zhèn)靜作用

C.中樞安定作用                                          D.鎮(zhèn)痛作用

27.莪術治療婦人血氣結滯，經(jīng)閉腹脹的藥理學依據(jù)是(      )

A.鎮(zhèn)痛作用                                                 B.抑制子宮平滑肌收縮

C.可明顯增加血管血流量                            D.抗早孕作用

28.與桔梗的藥理特點不符的是(      )

A.促進胃液分泌                                          B.抗胃潰瘍

C.有鎮(zhèn)靜作用                                              D.有抗炎作用

29.以下有關天麻的敘述正確的是(      )

A.天麻對中樞神經(jīng)系統(tǒng)有興奮作用              B.天麻對中樞神經(jīng)系統(tǒng)有雙向調節(jié)作用

C.天麻對中樞神經(jīng)系統(tǒng)無影響                     D.天麻對中樞神經(jīng)系統(tǒng)有抑制作用

30.鉤藤降壓的有效成分是(      )

A.去氫鉤藤堿                                              B.鉤藤堿   

C.異鉤藤堿                                                 D.異去氫鉤藤堿