Current location - Plastic Surgery and Aesthetics Network - Plastic surgery and medical aesthetics - (14) A spokesman for the Ministry of Agriculture for the prevention and control of highly pathogenic avian influenza announced on March 16, 2006: "The epidemic areas in Nanning, Guangxi and Lhasa, Tib
(14) A spokesman for the Ministry of Agriculture for the prevention and control of highly pathogenic avian influenza announced on March 16, 2006: "The epidemic areas in Nanning, Guangxi and Lhasa, Tib
(14) A spokesman for the Ministry of Agriculture for the prevention and control of highly pathogenic avian influenza announced on March 16, 2006: "The epidemic areas in Nanning, Guangxi and Lhasa, Tibet have been (14)

(1) c12h21n (2 points)? 5 kinds (2 points)

(2)? ① Elimination of reaction (1)? Reduction reaction (1 min)

②R-CHOH-CH2 OH( 1)R-co-COOH( 1)R-choh-COOH( 1)R-CH2 COOH( 1)。

③R-CHBr-ch2br+2 NaOH→2 nabr+R-CHOH-ch2oh? (2 points)

④? nR—CHOH—COOH →? +nH 2 O(2 points)

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