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【单选题】
对于催化剂特性的描述 , 正确的是 。
A.
催化剂只能缩短反应达到平衡的时间而不能改变平衡状态
B.
催化剂使平衡常数变大
C.
加入催化剂能实现热力学上不可能进行的反应
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A.
We call them mooncakes.
B.
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C.
We both arrived at the same conclusion.
D.
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应收款项余额百分比法
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直接转销法
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A.
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B.
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C.
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D.
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A.
预防为主,综合防治
B.
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C.
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D.
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A.
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B.
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C.
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【单选题】呼吸衰竭缺氧伴C02潴留患者不可能出现
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