listEning 3 "gEologyClAss"
{$mEDiAurl}
ACCorDing to thE proFEssor, whAt ArE two proBlEms thAt CAn BE AntiCipAtED whEn roADs ArE Cut into An ArEA For mining
CliCk on 2 AnswEr ChoiCEs.
A、thE lABor is DiFFiCult to rEtAin.
B、thE nAturAl lAnDsCApE is DAmAgED、
C、thE roADBEDs CrEAtE wAstE pilEs.
D、thE ECosystEm is DisturBED、