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【单选题】
有机含氮化合物中氮的测定时,消化是指在催化剂作用下 ( ) 的过程。A.
有机含氮化合物分解后生成的氨进行蒸馏，用硼酸钠吸收 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
B.
有机含氮化合物分解后加入过量氢氧化钠，进行水蒸气蒸馏 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
C.
热浓硝酸分解有机含氮化合物，氮转变成硝酸
D.
热浓硫酸分解有机含氮化合物，氮转变成氨被硫酸吸收
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举一反三
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A.
perceptual generalization
B.
stimulus discrimination
C.
perceptual discrimination
D.
selective distortion
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A.
concentrate
B.
compensate
C.
penetrate
D.
consolidate
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