In 2007, ETS in China had assisted the Beijing Olympics in terms of providing TOEIC tests as a screening tool for the selection of volunteers in Qingdao and for Hebei province.
在2007年，ETS在中国协助过北京奥运会，把托业考试作为在青岛和河北挑选志愿者的一个工具。
Molecular marker assisted selection(MAS) can provide a rapid, accurate, and efficient tool for selecting target genes in back cross breeding.
分子标记辅助选择（MAS）因其对目标基因的快速准确选择为回交育种提供有效工具。
Molecular marker assisted selection was regarded as a useful tool for breeding for drought resistance in crops.
分子标记辅助选择育种给作物抗旱育种提供了新的途径。
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