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Science Lesson
1008-0031
2000 Issue 4
shui you pi ma
liu min
..............
page:48
liang dian yi lun
chen gang
..............
page:31
xiao xue ke xue jiao yu de duo yi dian yu shao yi dian su ke ban zi ran jiao cai jian jie zhi san
xu kang yi ; lu xin qi ; zhang hong ming
..............
page:5-7
guan yu da qi ya li ke zhong de shi yan
wen qi wang
..............
page:32
yi bai duo yong bai de mi mi yi ke jiao xue ti hui
li li ying
..............
page:34
ke xue jia shou ci zhi zao chu neng chuang zao xin sheng ming de dna
..............
page:43
zu qiu xie xie ding shang da you wen zhang ke zuo
..............
page:44
ke xue jia zai yun shi zhong fa xian yan shui pao
..............
page:43
chu qi zhi sheng de xin bing xiang
..............
page:44
ru he pei yang xue sheng de gui na gai kuo neng li
cao fang
..............
page:11
dui fei teng shi yan de yi dian gai jin
zhou zhong yuan
..............
page:33
hu nan sheng zuo ling xian xiao xue zi ran jiao xue gai ge shi nian hui gu
zuo yuan zhi ; li shun li
..............
page:17-18
he cheng zhi yi jun tu qi
..............
page:46
guan yu jian fu
..............
page:4
ni zhi dao zuo yu duo shao
..............
page:46-47
wo jiao xue sheng gai liang mian hua
liu qing yuan ; zuo chun hua
..............
page:24
cong xue sheng de jing xi yu zhang sheng zhong xiang dao de
gu yuan de
..............
page:29-28
bian ji bu bao gao
..............
page:1
shen mi de yan jing
..............
page:15
zhou guang zhao tan ke xue jing shen qi yao dian
..............
page:14
qing chu ti nei la ji chi shi me
..............
page:46
zai jiao shi li yang can
ye chun mei
..............
page:12-13
xiao shui tang yu hai lu feng de xing cheng
ye zi li
..............
page:20
ke xue fa ming yao kao shui
..............
page:30
liang ci jiao zhong yao xian ku hou tian
sun yan
..............
page:29
nao ren de ao mi
cheng gang
..............
page:30
xin yue bao jiu yue de mi mi
wang ban ban
..............
page:48
zu zhi xue sheng can yu ke qian zhun bei
liu li hong
..............
page:10
shi wu lian jiao xue shi lu
chen ying liang ; fang chu zuo ; cang hai
..............
page:8-11
huang dong yin cha wei shi me bu fa sheng
zeng de jun
..............
page:37
kun chong
..............
page:38-40
shi wu lian jiao xue she ji
chen ying liang ; fang chu zuo
..............
page:7
xia yi ge qian nian de ke xue
si di fen huo jin
..............
page:3
ya suo kong qi jiao xue li tan
wu li hua ; wu qing hua
..............
page:16
li yong tai yang zhao chu bei fang
..............
page:36-37
lv se zi wu xian
..............
page:44
shuo shuo fang xian qing feng xiao xue de zi ran jiao xue
du rong chang
..............
page:26-27
ke nei ke wai xiang hu yan shen
ke min
..............
page:22
die shi zhi sheng fei ji mo xing de gai jin
liu shi fang
..............
page:33
mie wen neng shou liu tiao yu
..............
page:47
xue you suo de xue you suo yong
ban hang
..............
page:21
bi ke man bo shi ke xue shi jie qing qu ang ran
..............
page:46
yang zhen ning tan zhi xue
..............
page:40
shi da chan pin gai bian ming ri shi jie
..............
page:45
han wu ji sheng ming da bao fa yan jiu huo zhong da tu po
..............
page:44-45
yao bu yao wen yi wen yu shi shi me
han bi chao
..............
page:21
yong zuo qing chun de zhi wu biao ben
wan ming yi
..............
page:35
lai zi yu zhou de tai yang feng bao
he zhi jun
..............
page:42
xi wang zhe yang de ren cai chu xian zai zhong guo
li yan da
..............
page:1
zou chu qu qing jin lai zou chu qu nong cun zi ran jiao xue tan suo
di yi
..............
page:25
sheng yin de chuan bo zhong de shi yan
zuo yu jing
..............
page:34
li yong you jie gou de cai liao cu jin xue sheng zi xing tan jiu mao xi xian xiang jiao xue she ji li tan
guo sheng wu
..............
page:23
zen yang zuo yi ge ri zuo yi
..............
page:36
e sha xue sheng chuang zao li de biao yang
hou chun yan
..............
page:37
luo si ding jiao xue de ping xi
zhang ren ; huang zuo zuo
..............
page:13-14
yao zheng que dui dai xue sheng de fa yan
chen jian guang
..............
page:19
ting ke zha ji er ze
pan xue fen
..............
page:19
yan shi shi yan de san bu qu
ling xing biao
..............
page:35
zhu yi shi xiang rang xue sheng lai ti
zuo qing yang ; zhong dao xuan
..............
page:23
wo jiao guo shi de xing cheng
chen xing peng
..............
page:15
you bai hu suo xiang dao de
tang zhao zi ; tang xiao jia
..............
page:41
bu fang shi shi zi zhu can
li dong yan
..............
page:22
bai da gua de bian qian
..............
page:45-46
nong cun xiao xue ru he kai zhan hao ke wai zi ran yan jiu huo dong
liang xin jie
..............
page:24
xi bo li ya chu tu chang mao meng zuo xiang zheng shi
..............
page:47
bu jing yi shi bu chang yi zhi
gao qiang
..............
page:28
zi ran jiao xue zhong xue yong jie he san li
guan zhao
..............
page:20