研究人员发现，狗能够通过用鼻子触碰图片，来选择愤怒或快乐的面孔，其概率超过了人们对随机性的预期。
The researchers found that the dogs were able to pick the angry or happy face by touching a picture of it with their noses more often than one would expect by random chance.
在Domino表单或web页面中，可以使用选择列表来控制此类输入，这样用户就无法向受限制的字段中添加随机数据类。
On a Domino form or a Web page, we can control this sort of input using a selection list, so that users cannot add arbitrary data to a restricted field.
合法的选择策略包括选择列表中的第一个服务、从列表中随机选择服务或使用一些用户定义的算法。
Valid selection policies include selecting the first service in the list, selecting a service at random from the list, or user some user-defined algorithm.
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