The main purpose of changing main engine to electronic controlled is not to .A.control fue

What can we infer from the passage？A．The main purpose for the school"s name change is to a

What is the purpose of launching the AIM spacecraft？A．To study the climate changes above E

What is the conversation mainly about？A．The purpose of laughter.B．The cause of laughter an

The main purpose of the research was to find out

The main purpose of the last paragraph is to tell

The main purpose of the text is to______.A．convin