Because of _____ high demand for Type AB blood, _____ supplies of it are usually limited. [ ]

A. the; the

B. /; /

C. /; the

D. a; the

以下哪项不是得神的表现（）。

A.目光明亮

B.反应灵敏

C.呼吸平稳

D.两颧潮红

E.表情丰富