公共英语考试

【单选题】Questions 17～20 are based on the following talk. You now have 20 seconds to read Questions 17～20. Why is insulation required in new houses
A、To limit discussion on heating bills.
B、To prevent heat loss.
C、To determine the temperature in homes.
D、To convert homes to electric heat.
网考网参考答案：B
网考网解析：
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