— Do you have enough to ______ all your daily expenses?

— Oh yes, enough and to spare. [ ]

A. cover

B. spend

C. fill

D. offer

相同物质的量的下列有机物，充分燃烧，消耗氧气的量相同的是[ ]

A.C₃H₄和C₂H₅

B.C₃H₆和C₃H₈O

C.C₃H₆O₂和C₃H₈O

D.C₃H₈O和C₄H₈O₂