試題詳解

21. HIV is ultimately a fatal disease. Which choice could be used as an analogy to describe how HTV affects the body?
(A) Snipping the wires coming from a car battery so that no electricity flows to the car components.
(B) Bypassing a light switch so that electricity is constantly flowing to a light.
(C) An elevator stopping at the floor of which the button has been pushed.
(D) Rebooting a computer after getting a program error message.
(E) Changing the color of your house to match the color of your car.