题目内容
（请给出正确答案）
A、Such profound analysis which is based on theories is usually more authoritative and convincing than pure experiments.
B、Such theory-based profound analysis is usually more authoritative and convincing than pure experiments.
C、无
D、无
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素材1
公元前5世纪，古希腊哲学家留基伯和他的学生德谟克利特提出了原子理论，却无法得到科学验证，但被人接受。
素材2
1774年拉瓦锡在大量实验的基础上提出了质量守恒定律。1791年化学家里希特通过大量的酸碱中和实验，提出了当量定律的雏形、1799年普罗斯提出了所谓的定组成定律。后来许多科学家通过大量的实验，提出了倍比定律。
素材3
在大量的实验基础上，借鉴前人的思想和研究成果，道尔顿提出了他的原子学说：1．元素的最终组成称为简单原子，它们是不可见的，既不能创造，也不能毁灭和再分割，它们在一切化学变化中本性不变。2．同一元素的原子，其形状、质量及性质是相同的；不同元素的原子则相反。每一种元素以其原子的质量为其最基本的特征（此点乃道尔顿原子论的核心）。3．不同元素的原子以简单数目的比例相结合，形成化合物 化合物的原子称为复杂原子，其质量为所含各元素原子质量的总和，一同一种复杂原子，其形状、质量及性质也必然相同。根据上述素材，回答下列问题：
(1)道尔顿的原子学说的基础有哪些？
(2)道尔顿的原子学说比古希腊的原子论更具有科学说服力的原因是什么？
(3)从上述素材概括近代化学学科发展的基本特征。
(4)有人赞赏道尔顿“似乎是用他的手开始实验，却是用他的头脑来结束实验”。你如何理解这句话？
A、Cloud Intelligence, a new technology, has been introduced into China in recent years, offering its users much more convenience.
B、Cloud Intelligence is a new technology. It has been introduced into China in recent years. It can offer its users much more convenience.
C、无
D、无
A、vast amount of laboratory bonding studies on dental oxide ceramics.
B、Air-abrasion at a moderate pressure and using phosphate monomer containing primers and/or luting resins provide long-term durable bonding to glass-infiltrated alumina.
C、A little amount of laboratory bonding studies on dental oxide ceramics.
D、Air-abrasion at a moderate pressure and using phosphate monomer containing primers and/or luting resins do not provide long-term durable bonding to glass-infiltrated alumina.
A、Promising laboratory test results still need to be confirmed by clinical studies before clinical recommendation could be given.
B、It really is still a significant problem in dentistry to bond reliably to oxide ceramics such as alumina and zirconia ceramics.
C、Most original laboratory research reports on bonding to zirconia ceramics start in their introduction with a statement pointing more or less out that achieving a reliable and predictable bond to this ceramic would be a major problem in dentistry.
D、No clinical trials with alumina ceramic IRFDFs or with RBFDPs made from densely sintered alumina ceramic were found.
A、two
B、three
C、four
D、five
A、two
B、three
C、four
D、five
A、non-retentive restorations
B、retentive restorations
C、resin-bonded fixed dental prostheses
D、inlay-retained fixed dental prostheses
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