This paper is to discuss the unity of opposites in terms of the direct speech act and the indirect speech act, direct tests and indirect tests, and the direct method and the indirect method.

这种对立统一主要体现在直接言语行为和间接言语行为、直接测试和间接测试以及直接教学法和间接教学法三方面。

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Most of these are indirect tests that detect antibodies against the infectious disease.

它们中的大多数是检测抗某种传染病抗体的间接检验。

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Objective: To explore the efficiency of indirect memory tests and the difference in underlying psychological processes between direct tests and indirect tests.

目的：探讨间接记忆测验的有效性及直接和间接测验所涉及的心理过程的差异。

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Other consequences are the increased costs associated with prolonged illnesses, including expenses for additional tests, treatments and hospitalization, and indirect costs, such as lost income.

CNN: Antibiotics: Misuse puts you and others at risk