问题
单项选择题
关于转化作用叙述错误的一项是（）
A.人为供给外源DNA
B.可自动获取外源DNA
C.可获得新的遗传表型
D.可发生外源DNA的整合
E.自然界发生的转化效率高
答案
参考答案：E
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关于转化作用叙述错误的一项是（）
A.人为供给外源DNA
B.可自动获取外源DNA
C.可获得新的遗传表型
D.可发生外源DNA的整合
E.自然界发生的转化效率高
参考答案：E
| 完形填空 | |||
| A White Collar Lady in a Little Figure One morning,a girl named Merry,was staying at home when her wish really came ture-She had __1__ to a small figure all at once-A White Collar Lady! She was so __2__ that she whirled on her desk.Then she had a __3__ in her cap.When she was a __4__ girl,it took her nearly three hours to bathe and she had to wash her dirty __5__ for another three hoursHowever,now she could do __6__ within an hour.Then she started to __7__,putting on perfume powders,coloring her __8__ and combing her hair.She looked up at her huge clock,only 7 a．m..That was to say,it only __9__ her less than ten minutes to get to her company.In the past,doing all the housework on her own,she always was late for work. She __10__ her breakfast at a fast restaurant instead of at home for __11__ of being late.She felt very full after eating the roasted rice.It was __12__ very strongly and her coat was floating up in the wind.In the company,she put any necessary __13__ into her computer. In the following days she had built a __14__ of her own.She had longed for living in a villa for so long a time.Then,she gave up her job and kept herself into her villa all day because she did not have to earn a living in the company and pay the __15__. One day,God saw her state of living and signed:"A lazy dog!Pain comes from laziness!" | |||
| ( )1. A. transformed ( )2. A. expected ( )3. A. meal ( )4. A. shy ( )5. A. clothes ( )6. A. nothing ( )7. A. sit up ( )8. A. hair ( )9. A. cost ( )10. A. refused ( )11. A. result ( )12. A. floating ( )13. A. account ( )14. A. villa ( )15. A. food | B. changed B. excited B. drink B. common B. dishes B. none B. stay up B. skin B. took B. stopped B. cause B. blowing B. news B. cottage B. travel | C. turned C. surprised C. swim C. friendly C. head C. everything C. make up C. checks C. used C. enjoyed C. case C. flying C. evidence C. restaurant C. rent | D. become |