PV cells [br] Heat exchangersA、recover up to 90% of heat that would otherwise be

游客2024-01-07 53

问题 PV cells [br] Heat exchangers

选项 A、recover up to 90% of heat that would otherwise be lost.
B、recover over 90% of heat that would otherwise be lost.
C、are difficult to use.

答案 A

解析

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