题目

如图表示在一定范围内细胞膜外某物质浓度变化与该物质进入细胞膜内速度的关系，据图分析，下列说法正确的是（    ） A. 该物质进入细胞的方式是自由扩散 B. 该物质通过膜时必须与载体蛋白结合 C. 该物质可能是水或甘油 D. 该物质只能从浓度低的一侧向浓度高的一侧移动 答案：B假定英语课上老师要求同桌之间交换修改作文， 请你修改你同桌的作文。文中共有10处错误， 每句中最多有两处。错误涉及一个单词的增加，删除或修改。增加：在缺词处加一个漏字符号∧，并在其下面写出该加的词删除：把多余的词用斜线﹨划掉。修改：在错的词下面划一横线， 并在该词下面写出修改后的词。注意：1.每处错误及其修改均仅限一词；2.只允许修改10处， 多者（从第11处起）不计分。Before Louis the Eleventh became king, he used to visiting a peasant where garden produced excellent fruit. After he takes office, the peasant brought him as a present a very large apple which had grown in his garden. The king, remembering the pleasant times that he had spent under the old man’s roof, gave him a thousand of crowns(25便士). The lord of the village, heard of this, thought that if one who gave a common apple received so large a reward, one giving a really valuable present would receive a much large reward. He, however, offered a splendid horse. The king accepted it and thinking of a big apple, said, “This cost me a lot of money; I now give to you in return for your horse.”