企业在短期决策时，需要考虑下列哪些因素（）
A.经济效益
B.时间价值
C.社会效益
D.风险价值
参考答案：A, C
The beef is ______dear. Don't buy ______.[ ]
A. much too, too much
B. much too, much too
C. too much, too much
D. too much, much too
药物常用量的剂量范围是指：（）
A.最小有效量与极量之间
B.比最小有效量大些比最小中毒量小些
C.比最小有效量大些比极量小些
D.不超过极量
