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【单选题】
下列叙述不正确的是( )A.
三羧酸循环由柠檬酸的生成开始
B.
三羧酸循环的中间产物起催化剂作用，反应前后其含量永远不会改变
C.
三羧酸循环不可逆
D.
每次三羧酸循环中发生一次底物水平磷酸化
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举一反三
【单选题】Compared with earlier writings, especially those of the 19th century, modern American writings are notable for what they omit. A typical modern work will NO longer one of the following as its trademar...
A.
record of sequence and coherence.
B.
book of fragments drawn from diverse areas of experience.
C.
juxtaposition of the past and present, of the history and memory.
D.
book that begins arbitrarily, advances without explanation, and without solution.
【简答题】桥梁基础的常见类型有哪些？