£¨2009Äê³É¶¼Ä£Ä⣩¶ÔÓÚÈËÀàµÄijÖÖÒÅ´«²¡£¬ÔÚ±»µ÷²éµÄÈô¸É¼ÒÍ¥Öз¢²¡Çé¿öÈçÏÂ±í¡£¾Ý´ËËù×÷Íƶϣ¬×î·ûºÏÒÅ´«»ùÒò¹æÂɵÄÒ»ÏîÊÇ

Àà±ð

¢ñ

¢ò

¢ó

¢ô

¸¸Ç×

+

-

+

-

ĸÇ×

-

+

+

-

¶ù×Ó

+

+

+

+

Å®¶ù

+

-

+

-

£¨×¢£ºÃ¿Àà¼ÒÍ¥ÈËÊý150-200ÈË£¬±íÖÐ+Ϊ·¢Ïָò¡Ö¢±íÏÖÕߣ¬-ΪÕý³£±íÏÖÕߣ©?

A.µÚ¢ñÀàµ÷²é½á¹û˵Ã÷£¬´Ë²¡Ò»¶¨ÊôÓÚXȾɫÌåÏÔÐÔÒÅ´«²¡?

B.µÚ¢òÀàµ÷²é½á¹û˵Ã÷£¬´Ë²¡Ò»¶¨ÊôÓÚ³£È¾É«ÌåÒþÐÔÒÅ´«²¡?

C.µÚ¢óÀàµ÷²é½á¹û˵Ã÷£¬´Ë²¡Ò»¶¨ÊôÓÚÒþÐÔÒÅ´«²¡?

D.µÚ¢ôÀàµ÷²é½á¹û˵Ã÷£¬´Ë²¡Ò»¶¨ÊôÓÚÒþÐÔÒÅ´«²¡

  D?


½âÎö:

  Èç¹ûÊÇ°éXȾɫÌåÏÔÐÔÒÅ´«²¡£¬ÔòĸÇ×û²¡£¬¶ù×ÓÒ»¶¨Ã»²¡¡£µÚ¢òÀàÒ²¿ÉÒÔÊÇ°éXȾɫÌåÒþÐÔÒÅ´«²¡¡£µÚ¢óÀàÒ²¿ÉÒÔÊÇÏÔÐÔÒÅ´«²¡¡£µÚ¢ôÀàÈç¹ûÊÇÏÔÐÔÒÅ´«²¡£¬Ôò¶ù×ÓÓв¡£¬Æ丸ĸÖÁÉÙÓÐÒ»¸öÓв¡£¬²»·ûºÏÌâÒ⣬ËùÒÔΪÒþÐÔÒÅ´«²¡¡£

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÉúÎï À´Ô´£º ÌâÐÍ£º

£¨2009Äê³É¶¼Ä£Ä⣩ÏÂÃæÊÇ¡°ÉúÎï×éÖ¯Öл¹Ô­ÌÇ¡¢µ°°×Öʼ°DNAµÄ¼ø¶¨¡±ÊµÑéµÄ²ÄÁϺͲ¿·Ö²Ù×÷£¬ÇëÖ¸³ö²¢¸ÄÕýÆäÖеĴíÎó¡£?

¢ÙʵÑé²ÄÁÏ£ºÑ¡È¡Æ»¹û¡¢ÐÂÏÊÅ£ÄÌ¡¢ÍÃѪ·Ö±ð×ö»¹Ô­ÌÇ¡¢µ°°×ÖÊ¡¢DNAµÄ¼ø¶¨ÊµÑé¡£?

¢Ú¼ø¶¨ÊµÑ飺¼ø¶¨»¹Ô­ÌÇʱ¼ÓÈë¸ÕÅäÖƵÄì³ÁÖÊÔ¼Á£¬Á¢¼´¹Û²ìÑÕÉ«±ä»¯¡£¼ø¶¨µ°°×ÖÊʱȡţÄÌÑùÒº¼ÓÈëË«ËõëåÊÔ¼ÁAºó£¬Á¢¼´¼ÓÈëË«ËõëåÊÔ¼ÁB£¬¹Û²ìÊÇ·ñ³öÏÖ×ÏÉ«¡£¼ø¶¨DNAʱȡһ֧ÊԹܣ¬½«DNA˿״ÎïÈÜÓÚ0.015 mol/L ÂÈ»¯ÄÆÈÜÒºÖУ¬ÔÙ¼ÓÈë¶þ±½°·ÊÔ¼Á£¬¼ÓÈȲ¢¹Û²ìÑÕÉ«±ä»¯¡£?

¶©Õý£º?

(1)                                                                    ¡£?

(2)                                                                    ¡£?

 (3)                                                                    ¡£?

 (4)                                                                     ¡£?

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸