搜索结果: 1-3 共查到“Penn study finds”相关记录3条 . 查询时间(0.125 秒)
Successful Guide Dogs Have‘Tough Love’ Moms,Penn Study Finds（图）
Guide Dogs Tough Love Moms Penn Study
2017/9/4
Much has been written of the pitfalls of being a helicopter parent, one who insulates children from adversity rather than encouraging their independence.
A new study from the University of Pennsylvan...
Pebbles on Mars Likely Traveled Tens of Miles Down a Riverbed,Penn Study Finds
Pebbles Mars Traveled Tens Miles Down a Riverbed,Penn Study
2015/11/13
While new evidence suggests that Mars may harbor a tiny amount of liquid water, it exists today as a largely cold and arid planet. Three billion years ago, however, the situation may have been much di...
Plant hormone has dual role in triggering flower formation, Penn study finds
Plant hormone dual role triggering flower formation Penn study finds
2014/6/12
Flowers aren’t just pretty to look at, they are how plants reproduce. In agricultural plants, the timing and regulation of flower formation has economic significance, affecting a crop’s yield.