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Science Lesson
1008-0031
2000 Issue 6
chui qi pai shui fa shi yan
xiao yu min
..............page:37
re kong qi jiao xue ti hui
mou zong guo
..............page:28
wo jiao chuan dong zhuang zhi de ti hui
fu zhong cheng
..............page:27
xie mian jiao xue she ji
liu duo cui
..............page:21
ya chi
..............page:49
re chuan di dui bi shi yan yi li
yang rong ; peng xiao feng
..............page:38
da dan chu li jiao cai you hua ke tang jiao xue
yang xiao li
..............page:26
he lan ren de huan bao gao zhao
..............page:40
mian huai liu mo geng lao shi
lu pei zuo
..............page:11
wei lai nong ye ke ji ji qi fa zhan
wang zuo hua
..............page:1
ge yu tou de zheng yi
xia wen bin
..............page:30
li zu da ke tang zhu zhong xiao shi yan hu bei sheng yi cheng shi wang ji zhen fang ge xiao xue zi ran jiao xue ce ji
zhang jin tao ; zhou sui ren ; yan yuan feng ; yang jun
..............page:38
lai zi hai zi men de wen ti
deng cong xin
..............page:47
xiao dian zhu mei you liang zen me ban
jiang gen xiang
..............page:22
rang xue sheng shi di gan shou wu ran
zhong bi lan
..............page:25
zhan wang wei lai de tong xin
..............page:42
xie mian de shi yan jiao xue
di xing heng
..............page:17
tang bu rong jie ma ?
li feng
..............page:28
you wan ru jing qiao qian yi
yao ai xiang
..............page:19
wei lai 20 nian ke ji ri ri xin
..............page:42
qian yan hou tuo jiao hao zi ran
xu meng juan ; li jin
..............page:23
zhun bei shi yan cai liao yao kao lv zhou quan
zuo ming
..............page:18-19
yi xie jiao shui de xun huan de jing yan
ling zhao xing ; liang en rong ; zheng ya yi
..............page:32
zhe suan bu suan shi ta men de gong tong te zheng
zhou qiang
..............page:29
wu zhong mie jue gao chao lin jin
..............page:40
shui wu ran de diao cha yu jing hua
zhang zu ping
..............page:36
shui mian xia de wen du gao huan shi sha tu xia de wen du gao
chen ze ; guo lu zuo
..............page:47
liang qi dong wu ke tang shi lu yu ping xi
tan xue xin ; wang cheng ; xie xian gang
..............page:13-15
jiao xue xie zhen zhai xuan
hu jin yong
..............page:24-25
gu li xue sheng fa xian
tang jin hua
..............page:27
zai tan re chuan dao shi yan de she ji
fu da qing
..............page:18
wo dui liang qi dong wu yi ke de jiao xue tan suo
tan xue xin
..............page:15
bian ji bu bao gao
..............page:1
ba xue ke xue de shi jian huo dong yan shen dao ke wai
zhong dao jun
..............page:39
gang gan de zuo yong shi yan qi shi
zhu song wei
..............page:37
zuo hao cai hong shi yan de jue qiao
chen jia bin
..............page:37
hu shi ji chu jiang yong yuan luo hou
ye pei da
..............page:3
qian tan ji zhong xue sheng shi yan bao gao dan
huang xiao hua
..............page:35-36
kan liao zhong zi de gou zao yi ke hou de xin de
zhang li hua
..............page:26
xie mian yi ke shi yan de gai jin
peng xu xian
..............page:33
wo shi zhe yang jiao zhi wu de jing de
chen ming guo
..............page:28
sheng wu yu huan jing shi yan she ji
cheng jian
..............page:22
ke yuan ji cui
..............page:43-46
rang xue sheng ming bai wei shi me zhe yang ce liang
xu yuan cheng
..............page:16-17