专升本考试

【单选题】Questions 17 to 20 are based on the passage you have just hearD、
A、Listening to the voice of a person at the other enD、
B．Checking the voice volume on your phone.

C、Watching the reaction of people near you.
D．Asking the people around you.

网考网参考答案：C
网考网解析：
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