$ s/ }/ c5 z8 [+ Q; ~( d第八题食品科学的# h% V' b& w; x( C6 Q* q(欢迎访问avcar:https://avcar.vip)
利用美拉德反应不会() 9 H& U1 E3 h) o* \$ F1 ^5 TA、产生不同氨基酸 B、产生不同的风味: R5 @9 L) M/ e. C( ^* \(欢迎访问avcar:https://avcar.vip)
C、产生金黄色光泽 D、产生酸味成分' H2 u- A" {8 O1 R0 V2 e1 c5 I(欢迎访问avcar:https://avcar.vip)
/ ^. i* l9 E$ d" ~( c, ~(欢迎访问avcar:https://avcar.vip)
第九题化学英语题 & z3 {2 Z: B" w' T' b) M( xWhat is always correct about the molecular ion, M+, in a mass spectrum of a compound? 5 H" a7 H2 R) h8 A* p5 ]A. The M+ ion peak has the smallest m/z ratio in the mass spectrum." j$ r# M( G6 _! j7 J, S5 l5 Z(欢迎访问avcar:https://avcar.vip)
B. The m/z ratio of the M+ ion peak gives the relative molecular mass of the molecule. ( t6 m" G+ O7 N$ n$ XC. The M+ ion is the most stable fragment formed during electron bombardment.+ ^: O: S) ?5 n' U! w(欢迎访问avcar:https://avcar.vip)
D. The M+ ion peak has the greatest intensity in the mass spectrum. 2 m7 I0 B8 l; E. e9 L $ {" F4 P; ~8 G* B, M第十题采矿学0 l- S' [' I' c7 S6 y/ V(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