There is no denying the fact that as one grows older，one's memory ______.[ ]

A. refuses  

B. declines  

C. decreases  

D. falls

下述哪项是中路法颈内静脉插管要点（）。

A.在胸锁乳突肌三角顶端离锁骨上缘一横指为进针点

B.若试探未成功，针尖向内偏斜5～10度常能成功

C.与中线呈30°直指尾端

D.针尖指向胸骨上窝

E.针干与皮肤成30°角，与中线平行直指尾端