下颌神经出颅经过( )
A.茎乳孔B.圆孔C.眶上裂D.卵圆孔 E,破裂孔
参考答案:D
在关系数据库中,允许 ______。
A.不同属性来自同一个域
B.同一个关系中两个元组相同
C.同一列的数据类型不同
D.属性可以进一步分解
—What did the teacher say just now?
—Sorry, I didn’t hear it. I out of the window.[ ]
A. look
B. looked
C. am looking
D. was looking