cicipipi 幼苗
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Shelly had prepared carefully for her biology examination so
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Shelly had prepared carefully for her English examination so
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2) Shelly had prepared carefully for her biology examination
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1.Lisa had prepared carefully for her English examination so
YangLiwei,China's first spaceman,prepared carefully for goin
David had prepared carefully for the chemistry exam, as he w
Shelly had prepared
Jane had prepared carefully
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Mary had prepared carefully for her Chinese examination so t
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铁片和硫酸铁溶液反应,为何溶液质量增加?
若c为实数,方程x2-3x+c=0的一个根的相反数是方程x2+3x-3=0的一个根,那么方程x2 -3x+c=0的根为
一 用方框中正确的词或短语填空the other/another/theirs/the others / the oth
设计的引物扩增出两条大小相近的片段怎么办
(2009•昌平区二模)根据下列装置图,回答问题.
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苏子愀然,正襟危坐,而问客曰:“何为其然也?”
三个人跳绳,一共跳了360下,小红跳了130下,小莉跳了146下,小文跳了多少下?
摘抄《怀疑与学问》文中引用的名言,制作成卡片。
从一副扑克牌里任意抽取一张,抽到“王”(“大王”或“小王”)的概率是
容量瓶校验为什么必须干燥,移液管和滴定管却不用干燥。容量瓶会有什么影响?