颈总动脉造影侧位片上，颈内动脉起始段常位于颈外动脉的（）
A.前方
B.内侧
C.外侧
D.后方
E.前外侧
参考答案：D
Being a parent is not always easy, and being the parent of a child with special needs often carries with
_______ extra stress.[ ]
A. it
B. them
C. one
D. him
