题目

第二节:完形填空 (共20小题;每小题1.5分,满分30分) 阅读下面短文, 从各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。 I guess I should look upon it as a sweet proof of my tastes ,My 17-year-old son,who had for so long  36   my choice of clothing,now    37   searches through my closet.Wasn’t  it only yesterday  that  he had turned up his   38   at my clothes? When Alyosha was in middle school and   39   beginning to look at  his  40  as a creature from outer space,I had once生物膜上的蛋白质通常与多糖结合成糖蛋白,在细胞生命活动中,糖蛋白在细胞的识别,以及细胞内外的信号传导中有重要的功能,下列生物膜结构中,糖含量最高的可能是 [  ] A.细胞膜B.线粒体膜 C.类囊体膜D.内质网膜
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