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The 19th-century proponents of the school of thought known as mechanism held that life process are not the products of some mysterious life force, but are the same chemical and physical processes that operate in inorganic systems, which is still a subject of debate between biologists today. (A) systems, which is still a subject of debate between (B) systems, which are still debated between (C) systems still debated among (D) systems, a theory still debated by (E) systems, a theory still debated between 答案是D,我选的是B。a theory是同位语吗?为什么不在它之后加个is?谢谢! |
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