题目

甲、乙分别为物质进出细胞的坐标图和模式图，物质进出细胞与膜的结构有关．下列相关说法正确的是（ ） A . 甲、乙所代表的物质运输方式没有共同点 B . 由于膜对Na+通过具有选择透过性，所以细胞膜帮助Na+跨膜运输蛋白只有一种 C . 膜的选择透过性既与磷脂分子和水的亲疏有关，又与蛋白质的种类和结构有关 D . 婴幼儿肠道吸收乳汁中的免疫球蛋白的过程可用图乙中的跨膜运输方式表示describe make on her build sing wear practice America and I’m Zhao Kai, a student at Hongxing Middle School. The new term begins and I 【1】 a new friend at school. 【2】 name is Alice Green. She is a(an) 【3】 girl. She comes to China with her parents. She isn’t heavy or thin. She is of medium 【4】. She is tall with big blue eyes and short brown hair. She usually 【5】 glasses in class, because she is a little nearsighted.Alice and I are in the same class, 【6】 we go home together after school. 【7】 the way home, we talk about many things. She often 【8】 her hometown(家乡)—New York to me. And she invites(邀请) me to visit it. She enjoys music and 【9】 singing hard every evening. So do you know what her dream is? She wants to be a 【10】. She also likes watching movies and her favorite actress is Gillian Anderson.