下列哪种作用不属于氯胺酮对循环的影响（）
A.收缩脑血管
B.降低脑灌注压
C.增高脑血管阻力
D.心率增快
E.降低颅内压
参考答案：D
(74) controls the operation of the computer and performs it's data processing functions.
A. CPU B. Hard diskC. Memory D. Database system
旧事如新症
