相關sellingproductsbecau的文學知識

問題詳情：Thoseair­conditionersareourbest­sellingproductsbecausetheyareeasy________andworkwithlittlenoise.A．handling B．tobehandlingC．handled D．tohandle【回答】D[考查非謂語動詞。句意：那些空調是我們的暢銷...