spuling-jackson test 轴心挤压试验
Anyway on the test paper, I had written down what Mr. Jackson said in class.
不管怎样,在试卷上,我已经把杰克逊先生在课堂上说的话记下来了。
After he tested his own family's DNA, another family asked Jackson to test their DNA, then another family asked, and the project snowballed from there.
当他验证了自己家族的DNA之后,接二连三地有家庭邀请杰克逊验证自己家族的DNA,项目如滚雪球般扩展开来。
Test scores were mixed, and the school replaced it four years later. But Mr. Jackson continued to use it when he could.
尽管测试成绩喜忧参半,而且学校四年后替换了它,但杰克逊还是只要可能就继续使用它。
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