1.It is clear that the earth turns around the sun. A. 错误 B. 正确 ...

28.John’s father ______ mathematics in this school ever since he graduated from Harvard University. A. taught B. teaches C. has taught D. is teaching ...

15.The wild flowers looked like a soft orange blanket _______ the desert. A. covering B. covered C. cover D. to cover ...

35.While I was in the university, I learned taking a photo, _______ is very useful now for me. A. it B. which C. that D. what ...

7._______ his examination of the patient, the doctor wrote out a prescription. A. Having finished B. Finishing C. Finished D. Having been finished ...

3.--Did you remember to give Tom the key to the bike? --Yes,I gave it to him______I saw him. A. while B. once C. immediately D. the moment ...

8.He studied hard in his youth, ______ contributed to his great success in later life. A. that B. it C. what D. which ...

8: 在一个码组内纠正t位错误，同时检测e(e>t)个误码，要求最小距离dmin应为 A: dmin≥2t+e+1 B: dmin≥t+e+1 C: dmin≥t+2e+1 D: dmin≥2t+2e+1 ...

3: 消费者在展销会购买商品，其合法权益受到损害的，展销会结束以后，可以作为求偿对象的是（ ）。 A: 工商行政管理部门 B: 展销会的审批者 C: 广告发布者 D: 展销会举办者 ...

3: 重大涉外案件一般由（）管辖 A: 基层法院 B: 中级人民法院 C: 高级人民法院 D: 最高人民法院 ...