ACCORDING THE PASSAGE, DOUBLE-PANED WINDOWS A. ARE ENERGY EFFICIENT...

40. - TÀI LIỆU ON THI TN 12 CO DAP AN
TÀI LIỆU ON THI TN 12 CO DAP AN

40.

According the passage, double-paned windows

A.

are energy efficient.

B.

should only be used as replacement windows

C.

should only be in new addition to homes.

D.

will lower your heating costs by 50%