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【简答题】
细胞融合的选择培养基有 3 种关键成分,分别为 、 和 ,根据三者字头命名将其称之为 培养基。
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举一反三
【简答题】What do young people think places in town ? A. about B over C. of D. out
【单选题】According to Ryan, what attracts young readers most?
A.
Photographs and illustration.
B.
Chances and practices in business.
C.
Characters and stories close to their life.
D.
Political teachings and moral messages.
【单选题】What does 'fetus' mean in the fourth paragraph?
A.
a baby before it is born
B.
a young baby
C.
a youth
D.
an adult
【单选题】What the young man can't _____ is that his mum always treats him like a baby. [ ]
A.
support
B.
undertake
C.
hold
D.
bear
【单选题】What do young people like to do in their speech?
A.
Invent words that older people cannot understand.
B.
Use words invented by pop stars.
C.
Give words new meanings to mislead their parents.
D.
Copy the speech of their contemporaries.
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