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【单选题】
下列关于表面活性剂的HLB值的正确表述为:
A.
表面活性剂的亲水性越强,其HLB值越大
B.
表面活性剂的亲油性越强,其HLB值越大
C.
表面活性剂的CMC越大,其HLB值越小
D.
离子型表面活性剂的HLB值具有加和性
E.
表面活性剂的HLB值反映其在油水相中的溶解能力
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A.
投资政策
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C.
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A.
消费政策
B.
货币政策
C.
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D.
财政政策
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【单选题】可以直接刺激消费和投资,具有手段多、力度大和见效快特点的经济政策是( )。
A.
消费政策
B.
货币政策
C.
投资政策
D.
财政政策
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