A:What; why
B:That; what
C:What; because
D:Why; that
细菌与真菌、动植物细胞相比,虽有____ 集中的区域,却没有成形的____ ,这样的生物称为原核生物.
If someone spends his or her time, effort and money writing a book, for example, he or she deserves _______ for it.