29. The heart is an important organ of circulation ________ function is to pump blood to all parts of the body.
A: which
B: whose
C: of it
D: its
A: which
B: whose
C: of it
D: its
举一反三
- The heart is an important organ of circulation ________ function is to pump blood to all parts of the body.
- Which organ is regarded as a pump in the blood circulation? A: Heart B: Artery C: Vein D: Capillary
- 12.The function of the cardiovascular<br/>system is to transport blood throughout the body, with the heart acting as the pump for ________. A: circulation B: transportation C: transplant D: operation
- bump, dump, hump, lump, pump The function of the heart is to ______ blood through the body.
- The of the heart is to pump blood through the body. A: use B: reason C: power D: function