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ְҵģA

δ֪ ԴӦд ʱ2005-12-29¹վ

һ

(35⣬οʱ35)

һ⣨20⣩ԣ

Ķ

15⡣ÿһ֣һӣһijҪĸѡѡһɳע⣺𰸿ɶҪ˼ҲҪѡӦҪϡ

Ķģ2125⡣

ͨɿұȡģ80ڣѧҷھȲмǿԭĵܴߡΪϾнһԣdzΪķչΪ٣ȺƳɹ˾۱Ȳ۱Ѻ;˫Ȳȡн󣬻ܵ紫ȣ;ʮĿ

صĹĵԡͨϲͬǣϾһֶصͽṹͬķؽн϶ġɡӣʹԭϸıܣܹ硣ĵʱͭҪߡͨĵԣ¶ȵĽͶڽӽʱΪֵ¶Ⱥѵõȴ෴¶ߣΧɡͷԽԽ࣬˵ڳ³ֳܡʵֳɵ±ɳ£һ漣ǿѧĿ꣬óķЧʿԴ30%ߵ98%߽ʹԶΪܣʹڹϸУʹпȺ˾۱䷴ӦΪʵսԴ⡣

һͻǣƳɵ͵ش汿ء˶Ǧأʹdz( )Ŀܡؿṩ൱10ĵҪάޣɴ1000ϣʹǦس45ҲȾ

ѹ͹£ܲ糡ЧӦװϣܽŴ󣻰ںϣں£Ҳܲ¼񡣴⣬Դ׼ӹᡢĥʴܺáǿȸߡɱ͡

21. еĢһʵĴ
A.ϣ B.ʵ C.ɹ D.

22. жȷһǣ
A.ͨͬԭͬ
B.ǿȡҪ֮һ
C.ܹ紫ȣ˾н
D.нһ

23. жԡ;жȷǣ
A.áƳɵķЧʿԴ30%ߵ98%
B.ijʵ˿Ⱥ˾۱䷴Ӧ
C.سһΣͿṩ൱ص10ĵ
D.ֱӳΪĹԴ

24. жԡжȷһǣ
A.ɵӡıϵܣܹ
B.ڽܾȵͬ£Աͨʸ
C.¶ԽߣԽǿ
D.ʵֳijҪdz

25. жȷһǣ
A.ȫȡͨ
B.ȡ˽ҵĸ
C.ҪЧǵǿ
D.ԴԴ

Ķģ2630⡣

Ȼеʣ۴ĻСģ ҵ˲ǵĺʷػƶɶصĻʹùԲӺԭӣȵȡѧĿѧµķǾͨģӵںװ䣬ʹ΢׼ܹԼװԼ

֪DNA͵ʵȴӶ״ĻӼ(ˮ)зӼǣˣڱԷ۵йܵĵʣDNAҲŤ˫Ƴɶ̰״Ⱦɫ塣 ڶڱԷԴһЩ˵ʽͬЧ?

Ϊ˵õ𰸣ѧĻºѧʼģµʵںװ䣬ñΪ׻ˮһЩεС壬ЩСȻֻм΢״Сȴ跨еһ𣬲ڸͿˮʣһЩвͬ״ģ⡰׷ӡЩ׷ӡˮ͵Ļϵͳˮλϵˮλˮλϵˮλ ۰Ƶͼװ

ѧΪ½ļһЩ΢СľȷװзãоƬ΢ͻеڻijɹ֮ǰһҪIJҪɡЩװõС Ŀǰ˵СһҺóǾͻ񶹸һɢܡ

26. һⲻϵһǣ
A.ҵ˲Ȼ΢Сʵµķ΢׼װ
B.ѧĿѧܹʹ΢׼װ
C.΢׼װͨģӵװԭɵ
D.ӵںװѧ΢׼װ

27. жԡʽ˵һǣ
A.DNA͵׵ȴӶ״ĻӼзӼǣ
B.ˮ
C.΢׼װʱĽ
D.ڱԷ۵

28. ݵ⣬뻳ʵϵһǣ
A.ʵģµʵںװýе
B.ʵʱСװˮ͵Ļϵͳ½е
C.ʵʱСһͿˮʣģ⡰׷ӡ
D.ʵʱ׷ӡװǰͼе

29. ˵ԭ˼һǣ
A.ʵ֤ڱԷԴһЩԽװ
B.΢׼װҪװõС
C.ѧ·΢Сľȷװзã˵оƬ΢ͻе
D.΢׼װǰտѧҵͼԼװԼ

30.Т١ܴӦĴǣ
A./Ȼ/Ȼ/Ϊ B.ƺ/Ȼ/Ȼ/Ϊ
C.//Ȼ/ D./Ȼ//

Ķģ3135⡣

λйᲴ߾ϵϲɽĿǰߵɽĶߴ8848ף֮

ѧҶϲɽоرǽ20ѧ߷׷׶ظԭʵؿ⣬ŪϲɽȥѧǴϲɽԭ㺣ҵҶ桢ɺȹźĻʯ걾Ӷ֤40005000ǰϲɽһƬտĴ󺣡

֪ϲԼ100ĺһеԵļӲʯʯ㣬ʯԷԶѣγΪİ飬֮˶ݰع˵ѧǽȫʯΪ6飬ŷǰ顢ް顢ް顢̫ƽ顢ӡİϼ顣ϲɽγɾŷǰӡİĻײʹóںеľ޺¡¡ź㽥ʧ֮ԸƵɽ

ѧǾӡİƯƣʹϲɽߡϲɽ500ףÿ5׵ٶ

һЩѧΪϵɽDzᳬ׵ġеһͣ ѩϸ۵Ķ޺ ϼ㣬ײĶؽڳܲϵѹա̨ͬɽߡΪɽҲǡ޺ֻʯڲ϶ѻѡɽ岻̧֮ʣɽܵѹҲӦһﵽޣټɽͻ񶹸ɢܱ

㣬ѧΪ޸ǵɽ10000ʱĸɡһ˵֤ͬ˵û׸ɽԭ

Ȼϲɽڲ ٶԱÿ5ײ䣬 25000꣬߶ȽסʱϲɽɢܱǼʵϣ˵һա

31.Եڶ仰֮Ĺϵжȷһǣ
A. B. C.ת D.˵

32.ԵεĴм˵ȷһǣ
A.˵˵ B.˵˵Ĺ
C.˵ϲɽγɵ D.˵˰ع˵γɵ

33.Կѧȷһǣ
A.ѧ㣬ɽĸ߶Ȳᳬףϲɽܷ񳬹׻Ǹ
B.ѧ㣬ɽĸ߶Ȳᳬףϲɽпܳ
C.ѧ㣬ɽĸ߶ȲᳬףϲɽҲ
D.ѧ㣬ɽĸ߶Ȳᳬףϲɽֻܴﵽ

34.˵һǣ
A.ϲԼ100ĺһеԵļӲʯ
B.ϲɽɳںеľ޺һײ¡
C.һЩѧΪϵɽ߶ȿɴ
D.ϲɽÿ5ף25000꣬߶Ƚ

35.Т١ڴԹʣӦĹǣ
A.ֻҪ/ô B.ô/
C.ֻС/Ϊ D.ô/ô

ڶ ϵ

15⣬οʱ15ӣ

ⲿУÿһʽDZֹϵһ֣ҪѸ١׼ȷؼ𰸡ڲݸֽ㡣⣬ʱʱٷؽ

36.12.50.760.482.5ֵǣC
A.66 B.70 C.76 D.80

37.39998994987ֵǣA
A.3840 B.3855 C.3866 D.3877

38. ij԰۵Żݼ۹һ׷װʡ15Ԫô˹׷װʱ˶Ǯ?
A. 150Ԫ B. 35Ԫ C. 60Ԫ D. 75Ԫ


40. ij46ѧȥһ10ֻ6ˣС4ˣȫʴмֻ?
A. 3 B. 4 C. 6 D. 7

41. ֪51ģ5178֮乲мڶ?
A. 9 B. 6 C. 4 D. 12

42. 5µ8ĸйж?
A. 124 B. 123 C. 122 D. 121

43.һ¥ڵߵĸֻͬʱʹ6̨յ8˼Ҹװһ̨յһ죨24Сʱƽÿ̨ʹÿյСʱ
A.16Сʱ B.18Сʱ C.20Сʱ D.22Сʱ

44. һ·ò2.4ףòµ56Ʒһò?
A. 3.4 B. 2.0 C. 4.0 D. 4.4

45. ܱ34ıǣ
A. 303 B. 307 C. 308 D. 312

46. 1020ڼ?
A.һ B. C. D.

47. Ծ9βеƽ17֣ʮβʮƽΪ18֣ôһβ˶ٷ?
A. 30 B. 17 C. 23 D. 19

48.ѧסɷ䣬ÿס420ûطסÿס8һֻ4סʹжѧ
A.30 B.34 C.40 D.44

49һ߳Ϊ4׵˿ƳܳԲ˿˿ܳ䣬ÿԲ˿Ϊ
A.16 B.8 C.8/ D.16/

50һεشֲߵijȷֱΪ156ס186ס234ף֮ľΪ6ף϶һʹֲٿã
A.93 B.95 C.96 D.99