A company plans to produce cellulosic ethanol from corn stover; a concept diagram of which is represented by the attached figure. The harvested corn stover has $5\%$ moisture content, and the composition of the dry biomass is $38\%$ glucan, $22\%$ xylan, $6\%$ galactan, $4\%$ arabinan, $18\%$ lignin, $5\%$ ash, and $7\%$ extractives. Liquid hot water $($LHW$)$ pretreatment is used to pretreat $10$ metric tons $($MT$)$ of corn stover with a water flow rate of $50$L$/$min at $200\backslash$deg C for $30$min$.$ During the pretreatment, $2\%$ glucan, $90\%$ xylan, and all other cellulose and hemicellulose are hydrolyzed into monomeric sugars without the formation of furans, while during enzymatic hydrolysis, $95\%$ glucan and $80\%$ xylan in the pretreated corn stover are hydrolyzed into glucose and xylose, respectively. What is the quantity $($in MT$)$ of fermentable sugars $($monosaccharides$)$ that are produced in pretreatment stage?

$($please give answer in two decimal places$)$Molecular weights of some important molecules

$\backslash$table$[[,$C$,$H$,$O$,$MW$],[$Cellulose$,6,10,5,162],[$Glucose$,6,12,6,180],[$HMF$,6,6,3,126],[$Pentosan$,5,8,4,132],[$Pentose$,5,10,5,150],[$Furfural$,5,4,2,96]]$

Table $6\mathrm{.}1($book$)$

$\backslash$table$[[$No$.$ of carbon,Category name,Example$],[3,$Triose,Glyceraldehyde, dihydroxyacetone$],[4,$Tetrose,Erythrose, threose, erythrulose$],[5,$Pentose,Ribose, ribulose, xylose, xylulose, arabinose$],[6,$Hexose,Glucose, galactose, mannose, fructose$],[7,$Heptose,Sedoheptulose$],[8,$Octose,Octulose$],[9,$Nonose,Neuraminic acid, also known as sialic acid $($derivative$)]]$

Remember the same structural impirical formula for carbon number $3$ or more: $(C{H}_{2}O)n$