Testing must have the quality of validity and reliability so as to have the objective evaluation on learners' ability and check the teaching result effectively.

测试应具备有效性和可靠性才能达到客观评价学习者能力和检验教学结果的目的。

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Testing must have the quality of validity and reliability so as to have the objective evaluation on learners' ability and check the teaching result effectively.

测试应具备有效性和可靠性才能达到客观评价学习者能力和检验教学结果的目的。

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