已知f（x）=1+x，x∈R(1-i)x，x∉R，则f（f（1+i））=（ ）A 发布时间：2017-04-11 21:58 │ 来源：www.tikuol.com 题型：选择题 问题： 已知f（x）=1+x，x∈R(1-i)x，x∉R，则f（f（1+i））=（ ）A．-3B．0C．3D．3+i
题型：选择题 完形填空 When Jeff was young, he had always been thin and strong. Now Jeff was forty. and he was fat andhis muscles (肌肉) were very 1 . He did not wish to get fatter and softer every year. One day one of his friends said to him. " Do you want to be thinner. Jeff'? " 2 . I do. " Jeff answered. "well,stop going to your office 3 car, and get a bicycle. " Jeff had not ridden a bicycle for many years. "It is very hard to learn to ride a bicycle again at your 4 . " his wife said. In 5 .it was not too hard for Jeff to ride a bicycle again. He usually sat in his living room and read the newspaper in the evening. But now he 6 riding his bicycle every evening. He hoped that it would help him to get 7 . and he also got a lot of pleasure from it. He found some little roads which were not really very narrow but were not 8 enough for cars. and there he got away from the noises of the city. which were becoming too 9 for him. Then he began to go to his office on his bicycle. Sometimes all the cars stopped at a red light, but he could pass them to the 10 . because his bicycle was narrow. So he was very happy.( )1. A. soft ( )2. A. No longer ( )3. A. in ( )4. A. body ( )5. A. fact ( )6. A. liked ( )7. A. better ( )8. A. high ( )9. A. few ( )10. A. front B. hard B. A1 once B. through B. age B. short B. enjoyed B. thinner B. many B. many B. end C. sweet C. At All C. by C. wish C. silence C. practiced C. weaker C. wide C. much C. head D. smooth D. course D. on D. leg D. place D. hated D. fatter D. tall D. little D. middle 查看答案
题型：选择题 已知圆C：x=1+cosθy=sinθ（θ为参数）和直线θl：x=2++tcosαy=3+tsinα（其中t为参数，α为直线l的倾斜角）（1）当α=2π3时，求圆上的点到直线l的距离的最小值；（2）当直线l与圆C有公共点时，求α的取值范围． 查看答案
题型：选择题 建立一个图书资料管理输入界面，要求选择图书的2种借阅情况（是/否）、语种3种（中文/英文/日文）及分类（10类）。应如何在窗体中利用单选钮和列表框实现最方便编程（）A.用一组16个列表框来实现B.将10种分类用10个列表框、借阅情况用2个单选按钮、语种用3个单选钮实现C.将10种分类用一组10个单选钮（控件数组）、借阅情况用2个单选按钮、语种用1个列表框实现D.以上说法都不正确 查看答案
题型：选择题 客流调查与预测，为公交企业工作提供的依据不包含（）A.合理布设线网，包括新辟、调整、延伸B.合理配合车辆、绞接或单机达到经济合理的目的C.组织行车调度，编制行车作业计划，改进调度措施D.全面的抽样的调查，并进行分析 查看答案