▁Bi ology ▁I ▁for ▁the ▁sub ordinate ▁section ▁since ▁both ▁are ▁in ▁Science ▁section , ▁but ▁can ' t ▁choose ▁World ▁History ▁and ▁Princi ples ▁of ▁Account ing ▁because ▁the ▁former ▁is ▁in ▁the ▁Social ▁Studies ▁section ▁and ▁the ▁latter ▁is ▁in ▁the ▁V oc ational ▁Education ▁section . ▁Only ▁candidates ▁who ▁graduated ▁voc ational ▁high ▁school ▁can ▁choose ▁V oc ational ▁Education ▁section . ▁In ▁the ▁Second ▁Foreign ▁L anguages / Ch inese ▁Char acters ▁and ▁Class ics ▁section , ▁candidate ▁choose ▁only ▁one ▁subject . ▁Most ▁high - rank ed ▁univers ities ▁require ▁applic ants ▁to ▁take ▁two ▁science ▁sub ordinate ▁subjects ▁and ▁type ▁Ga ▁in ▁Math ▁section ▁if ▁they ▁apply ▁to ▁S TE M ▁major . ▁In ▁this ▁case , ▁they ▁don ' t ▁also ▁accept ▁combinations ▁of ▁sub ordinate ▁subjects ▁in ▁same ▁field , ▁such ▁as ▁Physics ▁I ▁+ ▁Physics ▁II . ▁ ▁National ▁Language ▁ ▁In ▁National ▁Language ▁section , ▁candidates ▁are ▁ass essed ▁on ▁their ▁ability ▁to ▁read , ▁understand ▁and ▁analyze ▁given ▁texts ▁written ▁in ▁Korean ▁fast ▁and ▁accur ately . ▁The ▁ 4 5 ▁questions ▁of ▁the ▁subject ▁is ▁class ified ▁into ▁four ▁categories : ▁▁ ▁Spe ech ▁and ▁Writing ▁( 1 0 ▁questions ) ▁ ▁Gram mar ▁( 5 ▁questions ) ▁ ▁Reading ▁( 1 5 ▁questions ) ▁ ▁Liter ature ▁( 1 5 ▁questions ) ▁ ▁Spe ech ▁and ▁Writing ▁ ▁This ▁category ▁consists ▁of ▁three ▁pass ages ▁with ▁ 1 0 ▁questions . ▁The ▁first ▁passage ▁is ▁a ▁script ▁of ▁lecture ▁or