【简答题】A.To review what students know about volcanic activity. B.To demonstrate the use of a new measurement device. C.To explain the answer to an examination question. D.To provide background for the next r...
【判断题】As you move to the conclusion, you can use languagecues--“now that we have seen that we can solve this problem effectively, we can review the entire situation”, movement cues--physically moving back t...