喉、气管、甲状腺、咽、食管均包被于()
A.颈浅筋膜
B.颈深筋膜浅层
C.颈深筋膜中层
D.颈脏器筋膜
E.椎前筋膜
参考答案:D
计算债券必要回报率所涉及的因素有______。
A.真实无风险收益率
B.预期通货膨胀率
C.风险溢价
D.持有期收益率
New York is one of ____ in the world. [ ]
A. the large cities
B. the large city
C. the largest cities
D. the largest city