The combined age of a group of people is the sum of the ages of all of the people in the

The term computer describes a device made up of a combination of electronic and electromec

On a multistage flash－type evaporator, the flash chamber is ___.A.combined as part of the

The combination of lenses in a compound microscope makes possible greater amplification th

The purpose of the research conducted 15 years ago was to ______.A．find out the age groups

The（71)is a combination of keys that allows the user to activate a program function withou

The prefix() is often used to combine with adjectives and nouns to form. new words indicating that something connects two or more places things or groups of people.