关于召回率（recall），以下哪个公式是正确的？ A: Recall=TP/(TN+FN) B: Recall=TP/(TP+FP) C: Recall=TP/(TP+FN) D: Recall=TN/(TP+FN)

有关机器学习分类算法的Precision和Recall，以下定义中正确的是（假定tp = true positive, tn = true negative, fp = false positive, fn = false negative）（ ） A: Precision = tp / (tn + fn), Recall = tp /(tp + fp) B: Precision= tp / (tp + fp), Recall = tp / (tp + fn) C: Precision = tp / (tn + fp), Recall = tp /(tp + fn) D: Precision = tp / (tp + fp), Recall = tp /(tn + fn)

What are the reasons for the Toyota Recall Crisis?

70（） A: remind B: remember C: recall D: forget

You recall the meaning experience of winning a prize in a competition.

The more you can recall, the more you will have_______________________.

彻底删除记录数据可分为两步来实现,这两步是( ). A: PACK和RECALL B: DELETE和PACK C: PACK和ZAP D: DELETE和RECALL

Once desire diminishes ,disappointed lovers may wonder where the “spark”intheir relationshiphas gone and may reminisce regretfully (and longingly) about "the good olddays”. A: A.revive B: B.reveal C: C.recall D: D.record

底删除记录数据可以分两步来实现，这两步是（） A: PACK和ZAP B: PACK和RECALL C: DELETE和PACK D: DELE和RECALL

cut her_____ on a piece of glass A: recall B: flow C: breeze D: finger