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【单选题】
下列哪个是 S N 2 的反应特征:( )A.
产物发生Walden转化
B.
动力学一级反应
C.
叔卤代烷反应速率大于伯卤代烷
D.
反应分步进行
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反馈参考答案：
举一反三
【简答题】（2015.06）2A. No job is suitable for her.B. Theycan’t offer any position.C. She can’t meet its requirements.D. Her English is notgood enough.
【单选题】（2015.06）8have more work experience.have a much higher salary.for promotion.
A.
To
B.
To
C.
To get a better chance
D.
To try something more challenging.
【单选题】（2015.06）6for a loan.
A.
Cashing a check.
B.
Opening an account.
C.
Saving some money.
D.
Applying
【单选题】（2015.06）9a brochure.
A.
From a magazine.
B.
From
C.
From a friend.
D.
From a newspaper.
【单选题】（2015.06）10background is good.sense of responsibility.
A.
He has related work experience.
B.
His education
C.
His English is beyond average.
D.
He has a strong
【简答题】（2015.06）5A. To meet afriend.B. To sell a product.C. To discuss asales plan.D. Tomake an appointment.
【简答题】（2015.06）4A. The machine works well.B. Themachine costs too much.C. The woman is a complaint.D. Thewoman wants to get her money back.
【简答题】（2015.06）7A. Four notes ofone hundred.B. Eightnotes of one hundred.C. Ten notes of fifty.D. Fifnotes of twenty.
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