题目

某数据的加密方法如下： ⑴将字符的 ASCII码值以字节为单位进行加密处理 ⑵将1个字节的8位二进制数左移2位，最低位用左移除的2个最高位补充； ⑶将二进制数转化为十六进制数，即为该字符的密文 用 UltraEdit软件观察“选考，Fighting！”这几个字的内码如图所示。则字符“j”加密后的密文是（ ） A . C1 B . A9 C . 2B D . 83 Jane is an English girl . She is twelve .She is a junior high school student . Her mother is Helen and her father is Jack .Her brother, Tom ,is a student ,too .He is in black pants .Jane is in a red skirt .Her father is in brown shoes .Her mother is in a green dress . 阅读短文内容，选择正确答案。（10分） 1. Is Jane English or Chinese ?             A . Yes , she is .           B. She is twelve .       C. She is English . 2. How old is Jane ?               A. She is twelve .          B. She is old .         C. I don`t know . 3. Jack is              . A. Jane`s brother          B. Jane`s mother       C. Jane`s father 4. Tom is a               . A. girl                  B. student             C. Chinese boy 5. What color is Helen`s dress ?               A. Red                 B. Black               C. Green