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【多选题】
遗传的基本定律包括（）A.
分离定律
B.
自由组合定律
C.
连锁交换定律
D.
伴性遗传
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反馈参考答案：
举一反三
【简答题】找朋友：（5分） 1.细胞壁 a、控制细胞内外物质的进出 2.细胞膜 b、保护细胞内部结构，维持细胞形态 3.细胞质 c、传递遗传信息 4.细胞核 d、生命活动的重要场所 5.线粒体 e、光合作用有关 6.叶绿体 f、呼吸作用有关
【简答题】____ the watch and see if you can find out what’s wrong with it. A. Pack up Break down C. Dig out D. Take apart
【单选题】The professor mentions an archaeological dig. What did the dig reveal about the inhabitants of Easter Island?
A.
They only settled in coastal areas.
B.
They survived mainly by hunting animals.
C.
They were fewer in number than previously thought.
D.
They arrived on the island later than previously thought.
【单选题】Which land did President Jefferson purchase that doubled the U.S.?
A.
Louisiana.
B.
New York.
C.
Boston.
D.
Virginia.
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