二极管具有()
A、放大特性
B、单向导电性
C、绝缘性
D、加强性
参考答案:B
一患者戴用全口义齿一周,主诉咀嚼费力,粘膜压痛,面部酸胀。最可能的原因是()
A.戴用时间短,不适应
B.咬合不平衡
C.缓冲区未缓冲
D.垂直距离过高
E.基托不密合
Capital budgeting process is the process of identifying and evaluating capital budgeting with four administrative steps. The most important step in the capital budgeting process is:()
A. forecasting cash flows.
B. generating good investment ideas.
C. analyzing individual proposals.