A smile can be observed, described, and reliablly identify, it can also be elicited and manipulated under experimental conditions.

Câu hỏi :

A smile can be observed, described, and reliablly identify, it can also be elicited and manipulated under experimental conditions.

A identify

B experimental

C can also          

D A smile

* Đáp án

A

* Hướng dẫn giải

Phương pháp giải:

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