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(1)A萌发时所需的外界环境条件是___________________(写出其中一条)。
(2)B的主要部分是_____________。
(3)C中的_____________是裸子植物所没有的。
(4)D在完成_____________过程后,子房中的胚珠发育成 。
(5) 假设图中C的颜色为红色,已知R是红色的显性基因,r为黄色的隐性基因,请你写出C果实的可能基因___________。 查看习题详情和答案>>
想验证你的阅读速度吗?请快速阅读课本中本单元Section B中的3a部分,回答下列问题。
(1)What does Pierre Lambert do?
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(2)Where is Pierre Lambert from?
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(3)What languages do Canadians speak?
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(4)How long is he staying in Canada?
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(5)What does he plan to do in Canada?
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(6)What will he be like when he returns to Paris?
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查看习题详情和答案>>你想验证你的阅读速度吗?请你快速阅读课本中本单元Section B中的3a部分并了解大意,然后回答下列问题吧。
(1)Who does Katrina write to?
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(2)How often does Katrina exercise?
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(3)How often does Katrina drink milk?
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(4)Why does she only eat junk food once a week?
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(5)Do you think she has a healthy lifestyle? Why or why not?
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(6)Is her lifestyle the same as yours or different? What are the differences?
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查看习题详情和答案>>你想验证你的阅读速度吗?请你快速阅读课本中本单元Section B中的3a部分,回答下列问题。
(1)Wei Hua is quiet and often tired. What's the matter with her?
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What should she eat?
________________________________________________
(2)Li Lei is stressed out and angry. What's the matter with him?
________________________________________________
What should he eat?
________________________________________________
查看习题详情和答案>>想验证你的阅读速度吗?请你快速阅读课本中本单元Section (B)中的3a部分并了解大意。回答下列问题。
(1)Who is Dave's best friend?
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(2)Who is more intellectual, Dave or his friend?
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(3)Who is more athletic, Dave or his friend?
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(4)Who is Lyle's one of best friends?
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(5)Who is more outgoing, Ruben or Lyle?
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(6)Who is Mary's best friend?
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(7)What do Mary and her friend like doing?
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查看习题详情和答案>>