用费用效率分析法对车辆进行经济评价，应选择()的方案作为最佳方案。
A.费用效率低
B.年效率高
C.年费用低
D.费用效率高
参考答案：D
—I'm too busy preparing the exam. Could you do _______to help me?
—Of course. I can do _______for you if you want me to.
A．anything; something
B．something; anything
C．anything; anything
D．something; something
大怒、暴怒可以导致的是（）
A.气结
B.气下
C.气上
D.气滞
E.气散
