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【单选题】
窝沟封闭术的基础是
A.
酸的发明
B.
釉质结构、牙本质结构的了解
C.
粘结树脂的发明
D.
酸蚀技术和粘结树脂的发展与完善
E.
酸蚀技术的应用
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举一反三
【单选题】________advertisements, TV programs are often made boring. [     ]
A.
Regularly interrupted by
B.
Regularly interrupting
C.
To regularly interrupt
D.
To be regularly interrupted by
【判断题】在电视时代,广告被认为是一种利用动态图像传递信息的推销巨人。
A.
正确
B.
错误
【简答题】A.Flies need less sleep than humans. B.Humans need a similar amount of sleep with flies. C.The amount of human sleep is determined by certain gene. D.Flies can determine how much sleep they need.
【单选题】dawn--don
A.
dawn
B.
don
【单选题】下列各物质在片剂中起润湿剂作用的是( )
A.
聚维酮
B.
乳糖
C.
交联聚维酮
D.
E.
硬脂酸镁
【单选题】用积分法建立动力学方程,如果用 C A0 -C A 对时间 t 作图,得到一条直线,则该反应的级数为( )。
A.
0
B.
1
C.
2
D.
3
【单选题】Flies evolve to be smarter only in the labs fundamentally because______.
A.
flies can adapt to the environment without learning
B.
the cost of learning in the wild is too huge to bear
C.
they may get some diseases as a byproduct in nature
D.
the lab conditions allow them to learn better
【简答题】__________ time flies!
【判断题】立井,暗立井,上山都属于垂直巷道。
A.
正确
B.
错误
【单选题】Dawn flies regularly between Atlanta and Los Angeles. She almost always uses Delta Airlines and has lots of Delta Sky Miles credit (Delta's frequent flyer program). Still, she uses an online fare comp...
A.
a compensatory decision rule
B.
a noncompensatory decision rule
C.
decision heuristics
D.
social factors
E.
temporal factors
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