【简答题】( ) can be defined as the functions which use computers to assist the work of process planners. A. CAD B. CAM C.CAE D.CAPP 2. Higher-level strategies use comput...
【简答题】Animals are good for old people's health because animals [A] can look after them. [B] can be their good companions. [C] are more reliable than people. [D] can help them with housework.