单项选择题

W: Let’s look at the survey on consumer confidence we conducted last week. How reliable are these figures
M: They have a 5% margin of error.
What’s the relationship between the two speakers（）

A. Teacher and student.
B. Friends.
C. Customer and assistant.
D. Colleagues.

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A.stop
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单项选择题

A. Yes, it’s Peter’s.
B. Yes, it’s someone else’s.
C. No, it’s Rose’s.
D. Yes, it’s Rose’s.

W: Let’s look at the survey on consumer confidence we conducted last week. How reliable are these figures M: They have a 5% margin of error. What’s the relationship between the two speakers（） 您的浏览器不支持 audio 元素。