再问GWD24-20 答案！！到底是D 还是E？？？

saya630

GWD-24-Q 20: According to a 1996 survey by the National Association of College andUniversity Business Officers, more than three times as many independentinstitutions of higher education charge tuition and fees of under $8,000 a

year than those that charge over $16,000.

A.than those that charge

B.than are charging

C.than to charge

D.as charge

E.as those charging

到底是哪个答案呢

saya630

up！！！

tuscan

E, charge 8000的学校和charge16000的学校比较，those不可少

saya630

thanks