题目

根据短文理解，选择正确答案。 ben “People today prefer living together to putting their signatures on a marriage certificate because they refuse to accept responsibility for the relationship,” said social worker Ken Yip, “and this is what is causing a lot of family problems.” When we sign a paper, for example, a business contract or a bank document, the signature is a seal of consent, an agreement to take the matter seriously. Most governments and many organizations will not process written complaints if they do not bear the writer's signature. The absence of a signature,下列各项中，与细胞间的信息交流有关的是   A．细胞膜的结构和功能B．细胞的结构和功能C．细胞核膜的结构D．细胞中的遗传信息