下列各项,不属积聚病因的是()
A.情志失调
B.饮食所伤
C.感受寒邪
D.病后所致
E.跌打损伤
参考答案:E
Which of the following most accurately describes the computation of nearly all bond market indexes, U.S. and global.()
A. Model priced.
B. Trader priced.
C. Market priced.
图中,F为凸透镜的焦点,L1′、L2′为入射光线L1、L2经凸透镜折射后的出射光线,L1′平行于主光轴,L2′经过光心O.请在图中作出入射光线L1、L2.