This allowed doctors to administer the drug through the blood, rather than by an injection to one spot, which improves results by ensuring that the entire liver receives an even dose.
这允许医生从血管注射药物，而不是通过一点上的注射，这可改善药物的效果，确保整个肝脏都能接收到均等的剂量。
China values actions and concrete results rather than empty talks, which fully demonstrates China's highly responsible attitude in handling the global issue.
中国不空谈，重行动，重实效，充分显示了对全球性问题高度负责任的态度。
Internal validity: the degree to which the results of a study can be attributed to the treatment rather than extraneous or confounding variables.
内部效度：一个实验结果归咎于实验处理，而非归咎于无关的混淆的变量的程度。
Internal validity: the degree to which the results of a study can be attributed to the treatment rather than extraneous or confounding variables.
内部效度：一个实验结果归咎于实验处理，而非归咎于无关的混淆的变量的程度。
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