1、 The Constitutional principles that Washington alone has the power to "establish a uniform Rule of Naturalization" and that federal laws precede state laws are noncontroversial.
只有华盛顿有权“建立统一的归化规则”和联邦法律先于州法律的宪法原则是没有争议的。
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2、 Cord blood is a noncontroversial source of stem cells, yet experts estimate that 99% of this potentially lifesaving resource gets thrown away postpartum.
脐带血中含有丰富的干细胞，因此有着救人一命的潜力，这一点已经不存在任何争议。但据专家估计，99%的脐带血在产后被白白丢弃。
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