【单选题】
·you will hEAr A rEport prEsEntED By A journAlist From tokyo.
·For EACh quEstion 23--30, mArk onE lEttErA,B、orC、For thE CorrECt AnswEr.
·you will hEAr thE rECorDing twiCE.
thE proDuCtions mAnuFACturED ByAsAhiChEmiCAl, jApAn’s lArgEst poly styrEnE mAnuFACturEr tAkE up ______ oF thE mArkEt.A.
B.
C.