listEning 9 "EnginEEringClAss"
{$mEDiAurl}
whAt DoEs thE proFEssor think ABout ComputEr sEnsors For BuilDings
A、hE thinks this is A supErior. mEthoD For prEsErving BuilDings.
B、hE FinDs thE rEsEArCh on sEnsors For pistons vEry EnCourAging.
C、hE is morE ConCErnED ABout thE potEntiAl For pEoplE to BE injurED、
D、hE DouBts thAt thE ConCEpt will rEsult in DEsign improvEmEnts.