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【单选题】
光效凝胶的主要化学成分是一种通过紫外线引发固化的（）。A.
聚合体
B.
丙烯酸树脂齐聚体
C.
凝结体
D.
水晶体
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反馈参考答案：
举一反三
【单选题】To Miss Bean the most important thing for a student is to ________.
A.
pay close attention to what the teacher says
B.
learn to think and have one’s own idea
C.
keep silent and unnoticed in class
D.
get special attention from the teacher
【单选题】集装箱交接的“门到站”(Door／CFS)方式属于( )。
A.
拼箱货接收，整箱货交付
B.
拼箱货接收，拼箱货交付
C.
整箱货接收，拼箱货交付
D.
整箱货接收，整箱货交付
【简答题】（ ）是指将一部分商品的采购权集中，由专门的部门或人员负责，另一部分商品的采购权交由各经营部门自己负责。
【单选题】Wilkins writes that before entering Miss Bean’s class, he held
A.
no opinions.
B.
no original opinions.
C.
opinions based on careful thought.
D.
opinions on various historical figures.
【单选题】Miss Bean respected the author by ________.
A.
giving him chances to answer questions
B.
hitting him with a eraser
C.
giving him extra lessons
D.
treating him as one of her students
【简答题】To Miss Bean the most important thing for a student is to
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