由于客观题的解答不要求写过程 ,所以数形结合思想对解客观题有独到的作用 .下面对 2 0 0 1年高考题中的 5道题用此法作出解答 .例 1　 (2 0 0 1年高考理 (1 )题 )若ｓｉｎθｃｏｓθ 0 ,则θ在 (　　 )(Ａ)第一、二象限 .　 (Ｂ)第一、三象限 .(Ｃ)第一、四象限 .　 (Ｄ)第二 Since the answer to the objective question does not require a writing process, the combination of number and shape has a unique effect on solving the objective problem. The following five questions in the 2001 college entrance examination question are answered using this method. Example 1 (2 0 0 1 year college entrance examination theory (1)) If sin θ cos θ 0, then θ is in () first and second quadrants. (B) first and third quadrants. (C) first and fourth quadrants. (D) first two