解:(1)單項(xiàng)式集合(D),(E);
(2)多項(xiàng)式集合(A),(B),(C),(F),(G);
(3)整式集合(A),(B),(C),(D),(E),(F),(G);
(4)二項(xiàng)式集合(A),(C),(F);
(5)三次多項(xiàng)式集合(A),(G);
(6)非整式集合(H),(I)
分析:要根據(jù)整式,單項(xiàng)式,多項(xiàng)式的概念和系數(shù)或次數(shù)的確定方法進(jìn)行分類.
點(diǎn)評(píng):主要考查了整式的有關(guān)概念和系數(shù)次數(shù)的確定.
(1)多項(xiàng)式的概念:幾個(gè)單項(xiàng)式的和叫做多項(xiàng)式.在多項(xiàng)式中,每個(gè)單項(xiàng)式叫做多項(xiàng)式的項(xiàng),其中不含字母的項(xiàng)叫做常數(shù)項(xiàng).一個(gè)多項(xiàng)式有幾項(xiàng)就叫做幾項(xiàng)式.多項(xiàng)式中的符號(hào),看作各項(xiàng)的性質(zhì)符號(hào).
(2)單項(xiàng)式的次數(shù):?jiǎn)雾?xiàng)式中,次數(shù)最高的項(xiàng)的次數(shù),就是這個(gè)多項(xiàng)式的次數(shù).