煤中的（）是通过计算得出的。
A、灰分
B、挥发分
C、固定碳
D、水分
参考答案：C
Tomorrow is Tom's birthday. Have you got any idea _____ the party is to be held?[ ]
A. what
B. which
C. that
D. where
骨性眼眶呈______形，深______mm，容积______ml。
