(2009年3月厦门市质检1题)《吕氏春秋》记载:“微子启虽长,系庶出,不得立;纣王虽幼,以嫡立。”材料反映了 A.财产继承的原则 B.宗法制的基本法则 C.任人唯才的要求 D.兄终弟及的传统 答案:B 解析: 宗法制的核心是嫡长子继承制。材料反映的是嫡长子继承制,因此反映了宗法制的基本法则。It has been proved______eating vegetables in childhood helps to protect you against serious illnesses in later life.A.if B.because C.when D.that