One of the main functions of lube.oil is to remove （) from oil cooled pistonsA.powerB.fri

— 3D printing is one of the latest technological innovations.— ____ Maybe its functions

This passage mainly discusses ______ .A．the functions of carbon dioxide and waterB．the rol

● The function of （72） is to convert information from one physical representation to digit

The phrase "function in the disservice of one another" （Para. 1) most probably means______

What is this passage mainly concerned with？A．The functions of the Department of Labor in A

What is the main idea of the news item？A．Stricter security restrictions were imposed on lu