题目

为虚数单位，复数，则（）A. B. C. D. 答案：【答案】D【解析】化简为的形式，进而求得.依题意，故，故选D.选出把AB两组内容搭配正确的一项。               A              1. This bird can    2. This duck can    3. This dog can     4. This boy can     5. This girl can         B             a. swim.           b. play football.                                                                     c. dance.          d. fly.           e. run.           A. 1-d;   2-e;   3-a;   4-b;   5-cB. 1-d;   2-a;   3-e;   4-b;   5-cC. 1-c;   2-a;   3-e;   4-d;   5-bD. 1-d;   2-a;   3-c;   4-b;   5-e