By law, solar water heaters are ________ in all new houses in Israel.
A: installed
B: stalled
C: stored
D: restored
A: installed
B: stalled
C: stored
D: restored
举一反三
- Currently there are ______ rooftop solar water heaters in China.
- The rooftop solar water heaters provide ______ without consuming any fuel.
- Solar water heaters priced much ______ in America than a comparable system in China.
- Solar water heaters help to lower energy cost and cut carbon emissions.
- Solar water heaters would be immesely ______ since it would help dramatically lower our energy costs.