记存模型要求准确、完整，但不包括（）
A.基骨
B.移行皱襞
C.腭穹隆
D.唇系带
E.颊黏膜
参考答案：E
Doctors strongly recommend that fathers _____ present at their baby's birth. [ ]
A. be
B. are
C. must be
D. will be
分配层析
