通过卵圆孔的结构为
A.三叉神经第1支B.三叉神经第2支C.三叉神经第3支D.静脉E.脑膜中动脉
参考答案:C
解析:为下颌神经,出卵圆孔后发出肌支支配咀嚼肌。
What _________ your parent _________ at that time yesterday?[ ]
A. is; doing
B. are; doing
C. was; doing
D. were; doing