消化性溃疡的病原体为（） A.杜克雷嗜血杆菌 B.O157：H7大肠杆菌 C.军团菌 发布时间：2017-06-14 10:23 │ 来源：www.tikuol.com 题型：单项选择题 B型题 问题： 消化性溃疡的病原体为（）A.杜克雷嗜血杆菌B.O157：H7大肠杆菌C.军团菌D.幽门螺杆菌E.密螺旋体
题型：单项选择题 B型题 完形填空。 One day, a young man asked Albert Einstein, the great German scientist, which the secret of successwas. The scientist 1 him that the secret of success is hard work. A few days 2_ the young man askedhim the 3 question again. Einstein was very 4 . He did not say 5 , but wrote a few 6 on a piece of paper and handed it to the young man. The young man looked 7 the piece of paper. On it was written: A=X+Y+Z."What 8 this mean?"asked the young man."A means success," said the old scientist."X means hard work, Y means good methods, and Z means 9 talking and start to 10 .( )1. A. told( )2. A. ago ( )3. A. easy ( )4. A. worried ( )5. A. anything( )6. A. words ( )7. A. on ( )8. A. will ( )9. A. go on ( )10. A. work B. saidB. before B. good B. happy B. something B. sentence B. up B. shall B. stop B. read C. talkedC. later C. same C. angry C. nothing C. word C. down C. does C. enjoy C. write 查看答案