隐性颅裂()显性颅裂()
A.颅骨缺损
B.颅腔内容物膨出
C.两者均有
D.两者均无
参考答案:A,C
自然通风的动力是()。
A.风压
B.室内热上升气流
C.热压
D.风压与热压
The lawsuit was lost because of () in the statements of the witness.
A.discrepancies
B.conjugations
C.coincidences
D.remonstrations