冠状动脉血流量的调节因素包括（）.

A.心肌代谢水平

B.腺苷

C.甲状腺素

D.血管紧张素

E.肌酐

The objectives of（）are to ensure safety at sea, prevention of human injury or loss of life, and avoidance of damage to the environment,in particular to the marine environment and to property.

A.COLREG

B.IMDG

C.ISM

D.SOLAS