Blood is the ______ in which oxygen is carried to all parts of the body.
A: medium
B: method
C: meditation
D: mechanic
A: medium
B: method
C: meditation
D: mechanic
举一反三
- 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 heart is an important organ of circulation ________ function is to pump blood to all parts of the body.
- The blood delivers oxygen to the body.
- Your red blood c_______allow oxygen to circulate throughout your body.
- The _____ carries blood from the heart to other parts of your body.