The efficiency of coagulation process is not good during the condition of low temperature, because ( ) A: coagulants will not hydrolyze completely B: the hydration of colloidal particles is enhanced, which hinders the coagulation process C: the viscosity of water is high, so the Brownian motion is weak, making it difficult for colloids to aggregate D: The rate of coagulants hydration is too high

Trans fats are made from natural fats, and the reaction involved is: A: oxygenation B: hydration C: hydrogenation D: dehydrogenation E: Saponification

Place the following steps in lipid oxidation in their proper sequence. (Note: this is not a complete list of steps）(a) Thiolysis (b) Reaction of fatty acyl-CoA with carnitine (c) Oxidation requiring NAD+ (d) Hydrolysis of triacylglycerol by lipase (脂酶) (e) Activation of fatty acid by joining to CoA (f) Hydration A: (d)→(e)→(b)→(f)→(c)→(a) B: (c)→(f)→(c)→(d)→(a)→(b) C: (e)→(b)→(c)→(f)→(a)→(d) D: (f)→(c)→(b)→(e)→(a)→(d)