患者,男,60岁,腰痛脚软,身半以下常有冷感,少腹拘急,小便不利,阳痿早泄,舌淡而胖,脉虚弱,尺部沉细,宜选用()
A.高良姜
B.干姜
C.小茴香
D.附子
E.茯苓
参考答案:D
滴有酚酞的氢氧化钙溶液与下列各物质恰好完全反应后溶液仍旧呈现红色的是( )
A.稀硫酸
B.氯化铜溶液
C.稀盐酸
D.碳酸钠溶液
Network planning (PERT/ CPM/PDM) methods ______.
A) are usually too complicated for practical use on most projectsB) require highly trained specialists for effective useC) always require computer support to be practicalD) are based on flow charts and they allow observation of what happens to the project schedule when changes occur to a task's start and stop dates