人机工程学在美国称为（） A: AHuman Engineering B: BErgonomics C: CEngineering D: DMan-Machine Engineering

局域网的英文缩写是（） A: ALAN B: BWAN C: CDDN D: DMAN

局域网的英文缩写是（）。 A: AWAN B: BTAN C: CLAN D: DMAN

The NC machine tool system contains the machine control unit (MCU) and the （ ） A: Machine B: Machine tool C: NC

There are five basic types of machine tools such as lathe or turning machine, drilling or boring machine, milling machine, shaper or planer, and grinder.

The NC machine tool system contains the machine control unit ________ and the machine tool itself.

They position the metal stock on the machine tool—___________，___________，___________, or other type of machine A: drill press B: lathe C: milling machine D: turning machine

The factory has produced a new kind of ____. A: machine B: machines C: a machine D: the machine

ATM is the abbreviation of _______. A: Automatic Transaction Machine B: Automatic Translation Machine C: Automatic Teller Machine

Equipment for washing A: low consistence washing machine B: medium consistence washing machine C: high consistence washing machine D: Diffusion washing machine