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【单选题】
“癌细胞是单克隆的”这句话的含义是什么A.
癌在个体的一生里只出现一次
B.
癌细胞刺激了抗体的产生
C.
癌细胞只能用一种方法来治疗
D.
癌细胞起源于某个不确定的细胞的失控繁殖
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【简答题】已知定义域为R的函数f（x）满足；f（x+y）=f（x）f（y），且f（3）＞1． （1）求f（0）； （2）求证：f（-4）＜1．
【单选题】Help Your Child Become a Reader Encouraging early reading skills can build a path to a lifelong （终身的） love of reading and can help your child get a head start in school. While reading to your child is...
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】Help Your Child Become a Reader Encouraging early reading skills can build a path to a lifelong (终身的) love of reading and can help your child get a head start in school. While reading to your child is...
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】设f(x)在[a，b]上连续，在(a，b)内可导，且f(a)=f(b)=1．试证：存在ξ，η(a，b)，使得e η-ξ [f(η)+f'(η)]=1．
【单选题】单项选择。 What time does the bus ____ Chengdu? [ ]
A.
go away to
B.
go away for
C.
leave to
D.
leave for
【简答题】At the beginning of the paragraph, specify whether it is a _______ leave or a __________ leave.
【简答题】根据首字母及句意补全单词 1. Don't f to turn off the light when you leave the room. 2. My mother's birthday is coming. I want to make something d for her. 3. I think French is so difficult for me. I can't s it wel...
【单选题】Computer games can be used to help children develop their reading skills.（ ）
A.
Right
B.
Wrong
C.
Not mentioned
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【简答题】At the beginning of the paragraph, specify whether it is a _______ leave or a __________ leave.