The centrifugal pump has a Â Â Â Â Â Â Â Â Â Â Â Â Â flow.

The centrifugal pump has a Â Â Â Â Â Â Â Â Â Â Â

1.	The centrifugal pump has a Â Â Â Â Â Â Â Â Â Â Â Â Â flow.
A.	variable
B.	uniform
C.	continuous
D.	constant
Answer» D. constant