判断被检查意识状态昏迷程度最主要的依据是

A．言语功能是否存在
B．瞳孔对光反射情况及瞳孔大小
C．神经反射功能是否消失
D．对外界刺激的反应与应答情况
E．呼吸循环功能是否障碍

What is the maximum capacity in cups of a pail that contains only sand and is filled to three fourths of its capacity ？（）
(1)If one cup of sand were added to the pail, it would be filled to seven eighths of its capacity.
(2)If two cups were removed from the pail, it would be filled to one half of its capacity.

A．条件(1)充分，但条件(2)不充分．

B．条件(2)充分，但条件(1)不充分．

C．条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．

D．条件(1)充分，条件(2)也充分．

E．条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．