23+27+31+35+39+43+47+51+55=()()

1/C51H74N2/c1-5-9-13-17-21-49(22-18-14-10-6-2)42-53(43-50(23-19-15-11-7-3)24-20-16-12-8-4)51-39-37-47(38-40-51)32-31-45-27-25-44(26-28-45)29-30-46-33-35-48(41-52)36-34-46/h25-40,49-50H,5-24,42-43H2,1-4H3/b30-29+,32-31
1/C28H41N5O15S.Na/c1-12(2)21(28(42)43)33-26(41)17(9-15-5-7-16(8-6-15)48-49(44,45)46)31-25(40)18(29-13(3)35)10-20(37)32-27-22(30-14(4)36)24(39)23(38)19(11-34)47-27;/h5-8,12,17-19,21-24,27,34,38-39H,9-11H2,1-4H3,(H,29,35)(H,30,36)(H,31,40)(H,32,37)(H,33,41
1/C33H42O7/c1-19-25-17-24-18-27(39-22(4)35)20(2)29(32(24,5)6)30(37)31(33(25,7)16-15-26(19)38-21(3)34)40-28(36)14-13-23-11-9-8-10-12-23/h8-14,24-27,30-31,37H,1,15-18H2,2-7H3/b14-13+/t24-,25-,26+,27+,30-,31+,33-/m1/s
1/C27H27N3O3S/c1-30-25(20-11-15-23(33-3)16-12-20)24(19-9-13-22(32-2)14-10-19)29-27(30)34-18-17-28-26(31)21-7-5-4-6-8-21/h4-16H,17-18H2,1-3H3,(H,28,31
1/C26H18O2/c1-17-16-23-21-9-5-3-7-19(21)11-13-25(23)28-26(17)15-14-22-20-8-4-2-6-18(20)10-12-24(22)27-26/h2-16H,1H
1/C21H26N2O4/c1-3-14-8-9-19(25)23(12-14)11-10-16-15-6-4-5-7-18(15)22-20(16)17(13-24)21(26)27-2/h4-7,12,17,22,24H,3,8-11,13H2,1-2H
1/C22H28O6/c1-23-17-11-21(27-5)19(25-3)9-15(17)13-7-8-14(13)16-10-20(26-4)22(28-6)12-18(16)24-2/h9-14H,7-8H2,1-6H3/t13-,14
1/C30H52/c1-10-25(6)16-12-20-30(9,21-13-17-26(7)15-11-14-23(2)3)29-22-27(8)18-19-28(29)24(4)5/h10,17,22-23,25,28-29H,1,4,11-16,18-21H2,2-3,5-9H3/b26-17
Somatoliberin (human pancreatic islet), 2-L-isoleucine-8-L-serine-15-L-alanine-27-L-leucine-30-(N-ethyl-L-homoserinamide)-31-de-L-glutamine-32-deglycine-33-de-L-glutamic acid-34-de-L-serine-35-de-L-asparagine-36-de-L-glutamine-37-de-L-glutamic acid-38-de-L-arginine-39-deglycine-40-de-L-alanine-41-de-L-arginine-42-de-L-alanine-43-de-L-arginine-44-de-L-leucinamide-, acetate (salt)
Somatoliberin (humanpancreatic islet),1-[5-(iodo-125I)-L-histidine]-2-D-alanine-27-L-norleucine-29-L-argininamide-30-de-L-glutamine-31-de-L-glutamine-32-deglycine-33-de-L-glutamicacid-34-de-L-serine-35-de-L-asparagine-36-de-L-glutamine-37-de-L-glutamicacid-38-de-L-arginine-39-deglycine-40-de-L-alanine-41-de-L-arginine-42-de-L-alanine-43-de-L-arginine-44-de-L-leucinamide-(9CI)
2,6,10,14,18,22,26,30,34,38,42,46,50,54,58-Hexacontapentadecaen-1-ol,3,7,11,15,19,23,27,31,35,39,43,47,51,55,59-pentadecamethyl-, dihydrogenphosphate, diammonium salt (9CI)
2,6,10,14,18,22,26,30,34,38,42,46,50,54,58-Hexacontapentadecaen-1-ol,3,7,11,15,19,23,27,31,35,39,43,47,51,55,59-pentadecamethyl-, dihydrogenphosphate, diammonium salt (9CI)
N-PHTHALOYL-GLY-DL-PHE
C75H123 O4 P . 2 H3 N扫二维码下载作业帮
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1+3+5+7+9+11+13+15+17+19+21+23+25+27+29+32+33+35+37+39+41+43+45+47+49+51+53+55+57+59+61+63+65+67+69+71+73+75+77+79+81+83+85-87+89+91+93+95+97+99+101=?
这些数很有特点,都是连续奇数哦!
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对的呢,要加起来吗?what
(1+101)*101/2
这是等差数列
(1+101)x101除以二
49×56=2744
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1.75亿学生的选择
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0+1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50+51+52+53+54+55+56+57+58+59+60=
dlWQ04ZB75
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[(0+60)×61]÷2=1830你好!很高兴为您解答,如有疑问请追问,如满意记得采纳(点击我的答案下面的【满意答案】图标)哦~~~ O(∩_∩)O 谢谢
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