! k4 n7 j4 r, D5 G6 Y @+ d第八题食品科学的# E: O6 ]% ]% i! h X+ ~; g# A3 V1 Z(欢迎访问avcar:https://avcar.vip)
利用美拉德反应不会()% E, C4 c4 c& d/ q( ^: v* ?2 p) Z- x(欢迎访问avcar:https://avcar.vip)
A、产生不同氨基酸 B、产生不同的风味 , E% r8 u+ c% Y: A7 W: CC、产生金黄色光泽 D、产生酸味成分 ( X. G4 Z4 O5 r& |6 a" Z [$ q) ^6 {: w+ b2 `" ^(欢迎访问avcar:https://avcar.vip)
第九题化学英语题 ; Y5 Z. q# t- T. g- C5 H4 v/ zWhat is always correct about the molecular ion, M+, in a mass spectrum of a compound?# _& ]; w' M4 n& j' w5 L3 X4 I(欢迎访问avcar:https://avcar.vip)
A. The M+ ion peak has the smallest m/z ratio in the mass spectrum. * L# X5 ^/ R* Y2 N# sB. The m/z ratio of the M+ ion peak gives the relative molecular mass of the molecule.# O# @8 o& F7 r" ~6 b3 T8 h(欢迎访问avcar:https://avcar.vip)
C. The M+ ion is the most stable fragment formed during electron bombardment. 0 K5 {1 A; z( K; d# v0 QD. The M+ ion peak has the greatest intensity in the mass spectrum. ( x3 U- C1 I6 z+ G [3 O: q+ F( \% l6 s(欢迎访问avcar:https://avcar.vip)
第十题采矿学+ V0 P2 ^/ M7 ~(欢迎访问avcar:https://avcar.vip)
根据所含金属种类不同,金属矿石可分为:______、 ______、 ______、______、和______。