(题干同试题11)
The underlined word “that” in the last paragraph refers to “      ”.

• A.how to collect body heat in public
• B.how to use body heat to heat buildings
• C.energy is much more expensive than body heat.
• D.moving low-temperature heat very far is very difficult.

答案

正确答案：D

知识点：细节理解题  

此处的that指代上一段所述内容，所以正确答案为D。

略

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