compression must be low for effective spark ignition
compression must be low for required horsepower and torque generation
compression must be low to prevent pre-ignition
compression must be low to have effective pre-ignition
第1题：
A. Flash
B. DLT4 tapes
C. CD-R
D. SDLT tapes
E. WORM
第2题：
Which of the following expansion card slots was designed specifically for video cards？（）
第3题：
Which of the following reasons represents why the designed compression ratio of a gasoline engine is lower than that of a diesel engine?
A.compression must be low for effective spark ignition
B.compression must be low for required horsepower and torque generation
C.compression must be low to prevent pre-ignition
D.compression must be low to have effective pre-ignition
第4题：
Which of the following technologies was designed to provide the FASTEST data rates over analog phone lines?（）
第5题：
Which of the following power settings represents 50 percent power in a lightweight access point？（）
第6题：
第7题：
Which of the following reasons indicate why it is important to have the user demonstrate the task they are trying to perform?（）
第8题：
Which of the following is NOT a recommended safe practice?
A.Securing equipment against slipping or drifting
B.Operating machinery at its recommended speed
C.Repairing loose handles on tools before using
D.Using tools for purposes for which they are not designed
第9题：
There are many reasons why customers lack sufficient security measures on the network. Which two reasons for insufficient security are typical of the customers today?（）
第10题：
Which of the following represents a wiring standard for twisted pair cables?（）