One of the negatives of the human tendency to conform is that _______.

Photos can be reproducedwithout negatives now. A: copied B: purchased C: replaced D: invested

Photos can be (reproduced) without negatives now. A: 繁殖 B: 生产 C: 粘贴 D: 复制

When Mr. Makin got the suitcase contained the negatives, he felt ______. A: very proud B: pleasantly surprised C: quite suspicious D: extremely encouraged

In standard American English, placing certain adverb modifiers at the beginning of a sentence requires you to change normal subject-verb order as well. The most common of these modifiers are negatives, including________, etc.

What are the main ways of giving advise? A: My advice would be to... B: I strongly believe you should... C: You need to remember that... D: Instead of focusing on the negatives,...

One of the negatives of the human tendency to conform is that _______.（ ） A: it can make people not think about the rational basis of certain behaviours. B: it makes people feel more comfortable with others. C: it provokes people to come up with "crazy ideas". D: it makes people feel bored with life.

中国大学MOOC: 假设测试数据集中共计有70个正类样本，30个负类样本。且某次分类结果如下表所示（表中各项的含义如表下方的注释所示）。则分类的召回率是 （要求：用小数表示，且保留小数点后两位）。实际类别预测类别正例负例总计正例TP=40FN=30P(实际为正例)=70负例FP=10TN=20N(实际为负例)=30表中数据项的含义：True positives(TP): 被正确地划分为正例的个数，即实际为正例且被分类器划分为正例的实例数（样本数）；False negatives(FN):被错误地划分为负例的个数，即实际为正例但被分类器划分为负例的实例数；False positives(FP): 被错误地划分为正例的个数，即实际为负例但被分类器划分为正例的实例数；Truenegatives(TN):被正确地划分为负例的个数，即实际为负例且被分类器划分为负例的实例数。