替代品的威胁,决定替代的因素中不包括( )。
A.转化成本B.替代品的相对价格C.替代品的绝对价格D.客户对替代品的使用倾向
参考答案:C
腱鞘囊肿常发生部位为()
A.腕背部
B.腕掌部
C.足背部
D.踝前部
E.前臂
With Shanghai World Expo drawing near, volunteers are making use of every minute to ____ their foreign language because language volunteers must pass a written test and an interview.
A.polish up
B.take up
C.use up
D.make up