协助扩散的物质穿膜运输借助于（）A、通道蛋白 B、载体蛋白 C、网格蛋白（cla 发布时间：2017-07-28 03:37 │ 来源：www.tikuol.com 题型：多项选择题 问题： 协助扩散的物质穿膜运输借助于（）A、通道蛋白 B、载体蛋白 C、网格蛋白（clathrin） D、边周蛋白（peripheral protein）
题型：多项选择题 完形填空。 Everyone has his dream. 1 do I. In ten years, I think I will be a reporter. I'll live in Shanghai, because I went to Shanghai and 2 in love with it last year. I think it's a really beautiful city. 3 a reporter,I think I'll meet lots of interesting 4 .I think I'll live in 5 apartment with my best friends, because I don't like living 6 . I will have pets. I can't have 7 pets now because my mother hates them and our apartment is too small. So in ten years, I'll have many different pets. I might even keep a pet parrot. I'llprobably go skating and swimming 8 . During the week, I'll look smart, and probably will 9 a suit. On weekends, I'll dress more casually. That's my dream. I'll work 10 to make it come true.( )1. A. Neither ( )2. A. were ( )3. A. As ( )4. A. men ( )5. A. an ( )6. A. alone ( )7. A. some ( )8. A. all day ( )9. A. dress ( )10. A. hardly B. So B. are B. For B. women B. a B. together B. no B. every day B. wear B. freely C. Nor C. fall C. Like C. people C. the C. lone C. any C. everyday C. put on C. hard D. either D. fell D. Because D. mans D. one D. lonely D. none D. anyday D. dress D. free 查看答案
题型：多项选择题 根据以下材料回答问题。世界卫生组织最近公布，全球约有11亿人抽烟，其中男子9亿，女子2亿，约占全球l5岁以上人口的1／3。平均每位吸烟者每天消耗香烟15支，发达国家与发展中国家分别为22支和14支。发达国家与发展中国家的烟草消耗的比例为（）A．121:49B．11:49C．1:1D．55:84 查看答案