问题
单项选择题
Use the results from the following survey of 500 firms to answer the question.（）
A．20.4%.
B．15.4%.
C．3.4%.
答案
参考答案：A
解析：
62 + 40 = 102,102/500 =0. 204 or 20.4%.
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Use the results from the following survey of 500 firms to answer the question.（）
A．20.4%.
B．15.4%.
C．3.4%.
参考答案：A
解析：
62 + 40 = 102,102/500 =0. 204 or 20.4%.