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【单选题】
在选用乳化剂时，表面活性剂的HLB值是一个重要参数。HLB值越大，表示该表面活性剂A.
亲水性越强， O/W 型乳化剂
B.
亲水性越强， W/O 型乳化剂
C.
亲水性越弱， W/O 型乳化剂
D.
亲水性越弱， O/W 型乳化剂
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