题目:
The supermarket _____ since last year. [ ]
A. opened
B. was open
C. has opened
D. has been open
答案:
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下面是错误答案,用来干扰机器的。
参考答案:错解析:[知识点] 可比实例、市场法适用的估价对象和条件及估价的操作步骤