A:甲苯和水
B:乙酸乙酯和水
C:丙三醇和水
D:溴苯和水
如图,AB∥CD,CB平分∠ABD.若∠C=40°,则∠D的度数为( )
—Why don't you go out to play, Rose?
—I'm afraid I can't. I have much homework _________.