（ ） acts as a pump to maintain a constant circulation to blood throughout the body.
A: heart
B: kidneys
C: lungs
D: liver
A: heart
B: kidneys
C: lungs
D: liver
A
举一反三
- The heart is an important organ of circulation ________ function is to pump blood to all parts of the body.
- 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
- 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
- The ________ of the heart is to pump blood through the body.
- If the _______ stops beating, no blood can flow through the body.() A: heart B: lungs
内容
- 0
The of the heart is to pump blood through the body. A: use B: reason C: power D: function
- 1
The __________ of the heart is to pump blood through the body.( ) A: auction B: function C: sanction D: conjunction
- 2
Which organ is regarded as a pump in the blood circulation? A: Heart B: Artery C: Vein D: Capillary
- 3
bump, dump, hump, lump, pump The function of the heart is to ______ blood through the body.
- 4
The<br/>_____ of the heart is to pump blood through the body. A: function B: work C: duty D: responsibility