Like the First Item in a List Box,the First Item

question 47

Multiple Choice

Like the first item in a list box,the first item in a combo box has an index of ____.

• A)0
• B)1
• C)2
• D)3

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Definitions:

Cigarette Smoking

The act of inhaling and exhaling the smoke produced by burning tobacco contained in cigarettes, which is harmful to health.

Respiratory System

The body system that carries on gas exchange; in vertebrates, consists of the lungs and airways.

Carbon Dioxide

An odorless and colorless gas, the result of organic compounds and carbon being burnt and the process of respiration. Found naturally in the atmosphere, it is essential for the photosynthesis conducted by plants.

Blood

Blood is a vital fluid in humans and other animals that transports necessary substances such as nutrients and oxygen to the cells and carries away waste products.