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Chemistry is ______ as a science for it provides the ability to understand living systems at the molecular level.
A.deniable
B.reliable
C.indispensable
D.dependent
B.reliable
C.indispensable
D.dependent
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参考解析
解析：本题考察词义辨析。题目意为“化学作为一门科学是不可或缺的，因为它提供了在分子水平理解生物系统的可能。”A选项意为“可否定的，可拒绝的”，B选项意为“可靠的，可信赖的”，C选项意为“不可或缺的，不可缺少的”，D选项意为“依靠的，从属的”。根据题意，强调的是化学这门学科的重要性。
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