The term "pour point" is defined as the lowest temperature at which lubricating oils will flow （）.<br>A:rapidly<br>B:by gravity<br>C:through a standard orifice at a specified temperature<br>D:at a rate of 60cc per second

The term "pour point" is defined as the lowest temperature at which lubricating oils will flow （）.
A:rapidly
B:by gravity
C:through a standard orifice at a specified temperature
D:at a rate of 60cc per second

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