Which of the following means one-thousandth of a unit?

The ___ is the vertical piping to which the one-way check valve, alarm valve, and main drain are attached

A. riser B. feed main C. cross main D. fire department connection

Higher than normal levels of cholesterol in the blood signifies a condition known as:

A) hypervolemia B) ischemic heart disease C) hypercholesterolemia D) hypertension