托福听力tpo13 Which of the following is NOT mentioned in paragraph 2 as a problem in using the technique of direct observation? 答案解析【小站备考】

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4.Which of the following is NOT mentioned in paragraph 2 as a problem in using the technique of direct observation?

It is impossible to be certain of the actual cause of an infant's response.

Infants' responses, which occur quickly and diffusely, are often difficult to measure.

Infants do not respond well to stimuli presented in an unnatural laboratory setting.

It may be difficult for observers to agree on the presence or the degree of a response.

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正确答案：C

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EXCEPT题，本应该排除法，但原文中非常清楚地写到第一第二第三三个局限性，也就是三个正确答案，所以也可以直接选的。第一对应D，正确，不选；第二对应对应B，正确，不选；第三对应A，正确，不选；所以C错，选。

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托福听力official13 Which of the following is NOT mentioned in paragraph 2 as a problem in using the technique of direct observation? 答案解析