Among the following examples, the one that does not utilize atmospheric pressure is (　) A. People breathe air into their lungs B. The doctor sucks the medicine into the syringe C. Use a pump to pump w

A. When people inhale air into their lungs, they use atmospheric pressure, so it does not meet the meaning of the question;

B. When inhaling the medicine, you pull the plunger backward and the air pressure in the syringe decreases. The outside atmospheric pressure presses the liquid from the needle into the syringe. Atmospheric pressure is used; it does not meet the meaning of the question;

C. A water pump pumps water. The air pressure above the water surface in the water pump is reduced by the upward movement of the piston or the rotation of the impeller. The water is pressed up under the action of external atmospheric pressure. It does not conform to the meaning of the question;

D. Deep-water divers wear special pressure-resistant diving suits to withstand greater water pressure, not atmospheric pressure, so it conforms to the meaning of the question;

So choose D.