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Science Lesson
1008-0031
2000 Issue Z1
yong cha shou you he xi tie si shi yi shi
sun yan kui
..............page:77
jiao shi ban yan shi me jiao se
yang zhen tan
..............page:48-49
chang shi ying yong san bu xun huan shi jiao xue
zhou jing
..............page:47-48
ke nei wai xiang jie he
wu cui ling
..............page:52
ting ke zha ji liang ze
pan xue fen
..............page:20
ke yuan ji cui
..............page:90-91
bu mo ca ye hui xi zhi xie
xia jian
..............page:53
ci tie shuai duan yi hou
jiang wei guo
..............page:53
kong qi de cheng fen shi yan gai jin
wei da gui
..............page:72
guang de se san shi yan de gai jin
xu zhi xiang
..............page:74
kong qi de cheng fen shi yan gai jin
sun long lu ; li xiang guo
..............page:22-23
jing de gong tong tong te zheng yi ke jiao xue si lu
pan yun xi
..............page:14-15
gu yu gu zuo
..............page:82-83
ran shao yu mie huo ke tang jiao xue shi lu
li jun ; yang jian ; pan yun xi ; dong xiang ying
..............page:5-8
wei 21 shi ji de ke xue jiao yu ban hao xiao xue zi ran gu gan jiao shi yan xiu ban
pan yun xi ; sun shu ming ; mao nai wang
..............page:18-19
gai jin dian re shi yan de ti hui
liu hong yu
..............page:76
bai chui cai liao de san ci xuan ze
cheng yu jing
..............page:78
he xue sheng de san ge yue ding
hu jin yong
..............page:60-61
jia ge shi yan jiang di nan du
wang xing lin
..............page:80
yong fen ye lou dou zhi qu er yang hua tan
qin hai ping
..............page:73
huan bao yi shi pei yang yi de
zhang hong jin
..............page:56-57
kong qi zhan ju kong jian shi yan yi de gai jin
zhou jian hua
..............page:72
ji jiao hou gan hao chu duo
huang xiao hua
..............page:57
zhi yi yu tan suo
tang ling
..............page:58-59
dui guang de zhe she shi yan de gai jin
hu jian ying
..............page:75
bie rang xue sheng tiao qi lai zhai yue liang
xu jian
..............page:57
wo zhe yang yin dao xue sheng ren shi tou ming
cui jing
..............page:55
dui re zhang leng suo yi ke de yan jiu
zhang hong wei
..............page:24-25
mo ca li jiao xue yi de
hua zong hong
..............page:25
wo jia zhong de bai cai xian nen ke kou
wu cai jun
..............page:94-95
dui bi hao xiang bi sai
huang hai ying
..............page:52
zi ran gai nian yin ru fang fa ju yu
huang jian hui
..............page:58-59
li yong fei ci dai zhi zhi nan zhen
huang wei dong
..............page:78
du jiao xian de si yang yu guan cha
yang guang
..............page:94-95
zhan wang 21 shi ji de ke ji
..............page:1
zou jin wu yan de ke jing de gong tong wu zheng jiao xue xin de
zhou qiang ; dong ze zhou
..............page:16-17
zhi zuo zheng qi fan chong dong li chuan
zhang jie
..............page:62
shen hua jiao gai shi yan yan jiu
wang jian en
..............page:32-33
di nian ji ke tang geng ying kai fang
shen yan qin
..............page:50
ni shuo de bu ru dong wu shi shi me yi si
feng zhong cheng
..............page:54
jiao xue sheng ren shi zi ji de guan jie
zhi ren
..............page:27
guan ai di qiu jia yuan
..............page:86-87
yao dui hai zi men fang xin yi dian
sun min
..............page:51
pei yang xiao zhu shou shang hao shi yan ke
deng cheng xun
..............page:51
cong gen ben shang zhuan bian jiao xue guan nian
zhou xin kui
..............page:46-47
yu mao qiu pai shi guan xing de hao gong ju
song sheng zhou
..............page:79
ye guan liu xing yu
he he
..............page:96
jiu di qu cai zhi qu er yang hua tan
dong ze zhou
..............page:80
hui pa de xiao shi zi
zhang liang
..............page:96
wo zhe yang jiao yong jing fan zhi zhi wu
huang xu dong
..............page:17
jing de gong tong te zheng ke tang shi lu
zhou qiang ; dong ze zhou ; pan yun xi
..............page:12-14
guan cha yu zhi jue
li xiao kang
..............page:20
chang shi yong shu xue fang fa jiao zi ran
wang er nan ; jiang jian jun
..............page:70-71
li yong vcd guang die guan cha qi zhong se guang
liao gui yun
..............page:74
tai yang neng re shui qi shi yan de gai jin
liu ying hui
..............page:81
wo shi zhe yang zuo de
qiu ya lai
..............page:35
zi ran ke jiao xue zhong de xue sheng zhu dong xing
yu qing shan
..............page:29
er cha qie zi huo feng shou
yu yuan
..............page:95
fang kai de yang chi de bao chi de hao
guan hong
..............page:50-51
zi ran ke wai huo dong de liu zhong xing shi
wan ming yi
..............page:64
dao di shi me bian lan
zhang jun
..............page:55
huan jing jiao yu yu ti gao xue sheng su zhi
yang ling
..............page:56
zi ran dian hua jiao xue zhong de san ji
nie de yong
..............page:61
huo shao cang ying chuan de feng bo
wang xiao jin
..............page:54
dian re jiao ju gai jin
zheng hui ; xu xin sheng
..............page:77
he tao shi rou guo huan shi gan guo
zhou qiang
..............page:55
zhong zi meng fa yi ke shi yan de gai jin ( liang ze )
huang wei dong
..............page:80
ye tan zi ran ke de kao shi
hu xing guan
..............page:33
ping ping guan guan zhen tou xian nao du you yong
li qi huan ; li huai zhi
..............page:60-61
qiao yong tou ying yi guan cha xiao guo hao
zeng lin qiang
..............page:79
wo men ai xiao xue zi ran jiao xue
wu ru chun
..............page:67
hai zi men de wen ti
xiong jun fen
..............page:92-93
dian re shi yan fang fa de zai ci gai jin
xiang chang bin
..............page:76
ke xue xin shi ye
..............page:88-89
wo de liang dian jian yi
jiao yu ming
..............page:72
fen guang shi yan de ying ji ban fa
sun yue mei
..............page:75
bian ji bu bao gao
..............page:1
kong qi de cheng fen jiao xue jie lu
wang xian fang ; wang xian ying ; huang xing lan
..............page:22
cong sheng huo zhong zhao da an
liu gui qin
..............page:52-53
wo jiao zhi wu de zhong zi
weng jian ming
..............page:24
li yong ke ji chang guan kai fang jiao xue
bian jun
..............page:65-67
ran shao yu mie huo yi ke jiao xue si lu
pan yun xi ; dong xiang ying
..............page:8-9
cai yong kai fang shi jiao xue zhong zi de gou zao
pan rui ning
..............page:50