WATER (CONSERVE) _______________ IS NECESSARY FOR HYDRO POWER STATI...

6. - DE THI THU CUOI NAM 11 6. - DE THI THU CUOI NAM 11
DE THI THU CUOI NAM 11
6. Water (conserve) _______________ is necessary for hydro power stations.

THE SECOND TERM TEST 3 (2011 – 20012)

I. Choose the best answer1 Scientists are searching for ...fuels, such as the energy of sun, water or wind.A. non-renewable B. natural C. disable D. alternative