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【简答题】
PCR 的基本反应过程包括 、 、 三个阶段。
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反馈参考答案：
举一反三
【简答题】完形填空。 Catherine was a famous writer of children's stories. She lived in a fine old house in a small town near London. Often she worked at home, in her quiet l long before her books became popular,...
【单选题】Which of the following is probably the best title for the passage?
A.
When Punishment Failed to Work
B.
How the Mother Won Through Punishment
C.
When the Daughter Was in Tantrum
D.
How the Daughter' s Tantrum Worked
【简答题】A．She smokes slightly. B．She never smokes. C．She dislikes her husband's smoking. D．She smokes heavily.
【单选题】The next day when she came into the classroom, she was happy because
A.
every student was smart and polite
B.
every student was reading English
C.
every student wore a pair of mismatched shoes
【单选题】—What does your new English teacher look like? —__________. [ ]
A.
She has blue eyes
B.
She is Miss Smith
C.
She comes from America
D.
She has a daughter
【简答题】Miss Zhao is one of the most popular teachers in the school．Yesterday she came into the with a big smile on her face．She said to her that she was to see they did well in the sports meeting．But was not...
【单选题】物流条形码一般由14位数字组成，其中第23位数字代表()。A．物流识别代码B．商品品种代码C．商品生产
A.
物流条形码一般由14位数字组成，其中第2-3位数字代表( )。 A．物流识别代码
B.
商品品种代码
C.
商品生产国代码
D.
生产厂家的代码
【单选题】—Where's Mom? —_____. [ ]
A.
She is in the room
B.
She is fine
C.
Her name is Kim Hand
D.
She is Mrs Smith
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